Maybe one or two cuts.
It sounds like to me that they've ruined the reservoir in their quest to beat the chubs. When I was growing up you could keep the cuts and you still mostly caught rainbow. ~3lb rainbow were common. We'd limit out by 10am a lot of the time.
Like I said I haven't been up there in a few years but even then the fishing wasn't great. I've talked to my friends and family who still live there and they say it's worse every year. Last year I don't think my dad limited out once. He went probably 10 weekends.