pg already gets tons of applicants per round, I don't think Yuri's plan will triple the number of applicants so I doubt it will be a problem in the short term at least.
If you are offered more money if you get it, even if the extra money doesn't come from the original source, more people will be tempted to apply. "I can do more with more money", "it's not as risky as before", some will surely be thinking.