Uncharted was not a launch title, it came out a year after the PS3 first did.
The original Uncharted is literally as generic a third person cover shooter as one can possibly get, it's true, but at the time that style was newer at the time, so it's a little more forgivable when taken in context of 2007, in fact in it's own way it was fresh at the time because the only other game that really did that TPS style was Gears of War, Uncharted was the first to use real world guns in that TPS style and not Gears' weird alternate universe chainsaw gun type weaponry (putting aside the precursor of Kill Switch on the PS2)
Today though yeah the shooting of Uncharted 1 is as generic as it gets, but what Uncharted 1 did great at the time and it still holds up pretty good today is it had a great sense of style with some nice, colorful backgrounds, fun puzzles to solve and likable, well done characters (Sully is pretty much one of my all time favorite video game side characters)
2 though was of course a huge improvement in every way, but 1 was not at all a bad start, 3 is a mixed bag, but 4 is great save for the character of Nadine (and Lost Legacy is good too)
And of course I'll go to bat for the original Last of Us as a great game, but then Druckyboy drove everyone else out and ruined everything about Naughty Dog, one of the all time great devs ever, ruined by just one man.
But hey, they had a great 20 year run, from Crash Bandicoot in 1996 to Uncharted 4 in 2016 with Lost Legacy as a nice little post script in 2017 (yes, I know Crash wasn't their first game, I'm just saying 1996 to 2016 was their peak)