The Enterprise took a pounding, right down to ejecting the warp cores. This could easily explain changes to engineering. Heck, I hoped it would be used to explain some external design fixes that would improve the appearance and reception of the new ship.
And did I misread your tone, or are you trolling for a fracas? This is all personal preference and opinion and I am tired of it degenerating into a p*****g contest. That's why I avoided the board for about two months.