Another aspect I think we should consider is timing. We all know Bethesda's calling cards now in 2018, but back in February of 2010, the Bethesda games the mainstream public had to go on were Morrowind (which many people, even on NMA like), Oblivion, and Fallout 3. I know there were several previous Bethesda games but the three were the most visible. New Vegas wasn't out yet so timewise nobody could compare it to F3. Most folks would probably chalk up F3's shortcomings to "it's Bethesda's first Fallout" and move on. Only NMA (and RPGCodex I guess) notice everything wrong with the game because of how long this franchise has been loved here.
So when Jim is calling NMA "unpleasable" in that article, it's just the result of time and not being a hardcore fan. And like I said before, is that a flaw on his part? Yeah maybe, but how many franchises have we all enjoyed, either legitimately or ironically, only for their fanbase to tear it to shreds? Even something like New Coke, probably tasted alright to someone outside the Coke fanbase, but everyone hated how it replaced the Classic.