That's a worse record than most but RV's in general are junk compared to other expensive things, like cars.
I honestly don't mean to make light of your issues but my suggestion is to roll with it and don't let it bother you too much. Compared to the folks with walls separating from ceiling and massive water damage, your items are rather minor and they are taking care of them.
Heck, my own new trailer just had its entire roof replaced because of an oversight. I'm not going to lose any sleep over it (well maybe a little but not much).
By the way, welcome to the forum!
Scott