I honestly do not understand why people still fall for Bethesda's half-truths.
What I find disappointing is how immersion breaking the way they handle this. They could have placed ravines at the edge of the sub-areas, or water, or steep mountain ranges, or deadly radiation fields, or poison gas clouds, or tons of dangerous predators. Anything but an invisible wall and a message prompt, warning you that you have reached the boundaries.
Sure, it is unreasonable to expect 1000s of fully modeled planets, that are actually interesting to explore. However, they could have done what No Man's Sky did and just add a bunch of procedurally generated, cookie cutter planets and touch up a few hundred of them manually, to make them woth exploring. Then, the issue of you cannot enter the atmosphere and land your ship manually and not being able to traverse the whole surface, could have been solved.
The game can still be fun though, so I don't see no reason to get worked up about this.