This topic kind of reminds me of the wave-particle dichotomy conversations young science students have before they get more comfortable with larger views encompassing duality.
You know, I grew up going to high school dances played by Ted Nugent, Brownsville Station, Mitch Ryder, Bob Seger etc etc and they all freely mixed their originals with covers over a 4 hour night of dancing. No DJ's in that day. In fact, if we saw records at a dance, we would turn around and walk out.
Now, things have changed.
Look, you have to decide whether to be an entertainer or an artiste; by which, I mean you have to decide whether or not you care if people like what you are doing. Covers vs originals don't have to be any part of that equation. I've always played both; but, that's me.
One thing is that the market for covers is pretty clear. The original thing is only partly about the band aspect. A big part is song writing which has only a bit to do with the band and more connected to the "hit" politics and machine. Song writing is important. Good songs are important. I would just leave it at that. I think Willie Dixon pretty much showed us the way.
Also, my 2c is spending time making negative observations about other acts is not particularly useful vs checking out the things they are doing right. Learn and move on.
IMO/E GL2A