Music makers of high and modest ambitions can normally coexist peacefully, and even profit from each other (unless they compete for specific resources such as gigs, air time, beautiful sopranists ...). Of course, finding suitable partners and arrangements is harder for ambitious projects than for "inclusive" ones, but given current Internet resources, it should be easier than ever before. Make an effort, don't blame the merry-makers (out of envy?).

About one thing I agree: nobody deserves naff arrangements; choirmasters who are not firm in their judgment should be hinted to seek advice.