I'll list a couple of the biggest arguments and my opinions, ofcourse i'll accept all opinions, and i'm not trying to negetivley target ceartain segments of Fallout's audience, i'm just trying to understand the argument.
1. "All Vaults had x G.E.C.K's Bethesda's has very limited ammounts!" While this is true, the whole storyline is based around the GECK, at the start Dad could of just taken it and the whole situation would be finished in minutes. And no - they shouldn't of carried on with Van Bauren, because Bethesda isn't Black Isles. Not to mention the fact that the less GECK's due to financial reasons makes more sense, as one assumes that these important pieces of equipment would cost alot of manpower and money to produce and distribute.
2. "How did the Enclave get from x to x !?" Ground vehicle convoys, Vertibirds, they could of had outposts away from the main base, as you'd excpect any military force to have, just because everything isn't exactly specified it dosen't mean it's impossible.
3. "Plasma rifles WTF!" A few weeks before release Bethesda released a video to IGN discussing weapons and showcasing some, during it they said they show how "Technology has advanced."
Enjoy