No, they won't. This one is just too ridiculous.
At worst, a few guys will rack up plenty of frequent flier miles from PT instead of PX, and take the family somewhere.
And they will find that when PX can't be used to keep them on fake R and EXB days, or make them "work" more due to receiving 100% credit for non-PX flights, and more credit for longer PT flights, they will end up going to work less and being home more, too. Why else would you think the company wants guys agreeing to PX on freighters...because it helps the guys out??? Seriously, come on!