It’s not weird at all; in other circumstances we call it a bonus.
You get baseline security by trading away the unlimited upside, but you are still incentivised to produce your best work by knowing if you help create a huge success you’ll get additional compensation for it.
They have years where they make hundreds of millions, years when they lose hundreds of millions.
It is weird to want the security of a paycheck, participation in unlikely huge successes, and no exposure to much more likely flops.