well but you need to understand 2 important things, first is that the muv luv was released for the Japanese market exclusive so having "engrish" doesnt affect them in anything it was just a little touch of extra quality and you have to prise them for that and second the amount of money that age has vs yakuza (with sega behind them) the scope is just not even close.
there are but mostly some few words you dont actually hear full dialogs (if you know of any vn that does something like this let me know), even in animes, for example in monster everyone there speaks a different language(german, polish, english, etc etc) but you hear them speaking japanese only so you need to imagine the whole situation