Maybe if you're playing on WTC terrain that is so saturated in ruins that the only way to see your opponent is in melee, then maybe, but otherwise turn one you will be able to move forward into a position to shoot something. If you aren't killing something, or at least damaging a model on turn one you're throwing the game.
I've played on WTC in precisely one event and fucking hated it. The only reason they used WTC was again, due to terrain storage for having that many tables. Of course if you had actually read the post...
Shoot at what in the top of round 1? If you're going first, then unless your opponent left a bunch of scout and infiltrate units out in the open for no reason, you've got nothing to shoot at.
The only shooting or charging to be doing round 1 is if you or your opponent tossed a unit out into the open for scoring, unless your opponent has thrown the game as I said. Top of round 1, you should really have nothing to be shooting at(maybe charging if you're playing WE with infiltrating units, but that's really an exception) because your opponent hasn't exposed anything in deployment and they haven't gone yet.. unless they're retarded.
Yes, if you shove all of your models into the center of the table at the first possible opportunity like an idiot, then yes you're going to be spending a bunch of time early on waiting on your opponent to play and then making saves, because you're playing like an idiot.
The only way it doesn't look like the first chart is if both players pass their first turn and sit in their deployment zone doing nothing. You start scoring on turn two, why would you not be taking objectives or scoring secondaries?
Because you don't need to move more than a unit or two into no man's land to score secondaries? Some of the secondaries you don't even play if drawn turn 1. Secondaries to end up in NML
Engage on all fronts, only requires being in the quarter so doesn't even have to be exposed to line of sight, completes at the end of your turn
Establish Locus, only have to be within 6" of the center and there's usually still LoS blocking terrain available, completes at the end of your turn
Secure no man's land, you send your 2 cheapest units to control 2 objectives if possible or just 1, which you should have at least one objective in NML that doesn't expose you to being shot at without the opponent having to reposition, also completes end of your own turn
Sabotage, requires being in a terrain feature anyway so same as above but even easier since the entirety of the terrain feature doesn't have to be outside of your DZ, just the unit(wholly within vs within)
Cleanse, same as secure no man's land, just needs to be a unit that can execute an action. End of your own turn.
Area Denial, this one actually does require sending a unit out into the open, but you're still scoring it end of your turn so throw away a cheap unit
Recover assets, can be done in cover, scores end of your turn
Tempting target, yeah this one means leaving a unit exposed like the others, but it still scores end of your turn
Behind enemy lines, storm hostile you can opt to re-draw in round 1. Defend stronghold and display of might you have to redraw in round 1.
So pretty much none of the secondaries require anything but throwing your cheapest unit out into the open, and sometimes not even into the open or even on an objective in round 1. Even someone playing custodes is still going to have a cheap unit of sisters of silence to throw at shit like this as an action monkey.
As for why you wouldn't do this for primary? Top of round 1 player goes and grabs primary objectives. Bottom of round 1 player removes them from objectives, congrats you've scored nothing when round 2 comes around. Additionally, depending in the armies involved you might be making it easier for a slow melee army like death guard or custodes to even take objectives in no man's land by giving them charge targets to begin with letting them grab those objectives early with tougher units than they normally would have been able to. If you're playing something fast like eldar with reactive moves, then obviously you could use those reactive moves to make those charges more difficult or impossible but I wouldn't need to point this out to you, not to mention if you had to reactive move off of the objective during the bottom of round 1 to avoid losing units, then you're still not scoring it round 2 anyway.