Sometimes praise is a sacrifice, it's up to us to make right choices and focus on what's important.
If the band is a load of rubbish (garbage...) I still thank God because HE (unlike the band) is the same yesterday, today & forever. When there's something really annoying in the mix that I can't quite fix, it's the same choice.
NEVER in worship have I thought that we are applauding anyone other than God.
VERY occasionally, the band gets a thank you and maybe a spattering of applause, even rarer are the technical Staff thanked publicly, - I don't do it for recogntiton, nor do the band but it is nice to feel appreciated from time to time (saying that, a few people saying something 1 on 1 means far more to me than a thank you from the front).
I do sometimes thank God for the musicians we have, but during worship I focus on God, who he is and what he has done in my life and the lives of those around me and the fact that he chose to save me.
If the band is good, I tell them, in person, afterwards. If the band does something that makes my life difficult I will tell them, in person, afterwards.
Just my thoughts...
Dave Mallon