I think for non-entertainers, there is a difference in attitudes. In my circle of players, the majority of the people using arrangers now did not have the skills to work before, atr least in this area. They were sort of "hangers on". It generally had to do with timing problems. They work now and I'm happy for them.
Talented entertainers are a delight. I'm not one.
I think any criticism of arranger players comes from within. It's not the public or purists but the players themselves trying to justify what they do.
We all just need to play whatever we want to, however we want to, and enjoy the benefist or suffer the consequences.
A while back, several long-time member/entertaines said in effect that anyone can play, but only the real talent can entertain. You know what my reaction to that was.
I own 4 arrangers, plus my old auto orchestra, which still works, so I don't have any room to criticize.
Russ