Thanks for the reply.

didn't understand how a linear reward distribution will be working, they just think it won't work.

We'll never know whether it'll work till we allow it to be executed for a certain period of time and I mean at least more than half a year.

I'm not a native English speaker, so had difficulties to explain it well.
In my last sentense, the first "working" refers to the internal mechanism / algorithm, the second "work" means "running well".