BS. There are tons of owner operators who fly a lot more and are more current and better equipped than many professional crews. And their insurance requires them to meet ATP standards yearly in training. I know quite a few who fly over 400hrs per year SP, so this is not a blanket statement that's valid. Professional 2 man crews screw up all the time and I'd like to see any statistics proving that a 2 man crew is twice as safe as a 1 man crew in turbines.
Just look at last weeks augering in a TEB in a Lear 35. This professional crew filed FL270 from a short repositioning from Philly (there's no way NYC control gonna get them up there for that short hop), then apparently do a skidding turn stall whilst they circle to land. This is with two experienced people at the controls.