I'm not trying to say everything is perfect in the 135 world. In fact I would agree the experience level is probably the lowest it's been in years. I'd say the same about most sectors of the industry...121, flight instructors, you name it.
And I agree, it's Derg's living room. People can talk and vent however they want. If I was hanging out with everyone in person I'd call BS on this one still. It's not my style to rant about something with no facts to share or anything to back up my point.
For whatever reason OP either won't or can't share specifics. I suspect whatever it was, he has no clue of the actual experience level in the aircraft he's working. Unless they screw up and say, "Sorry, I've never been here before and this is my first month in a jet," he simply doesn't know.
Highly experienced crews screw things up sometimes. It might be an operator who rarely goes to the NYC metro area and isn't familiar with a "gotcha" like DANDY or WENTZ. It might be a retired airline pilot with 25,000 hours still getting used to their retirement gig in a jet. There's all kinds of possibilities.
I don't know, and neither do you or the OP.