Yes, I actually wrote them a support ticket asking if they will be providing more transparency about payouts in the future. This random stacker news comment provides an argument for why FPPS might not be good. The old scoring system was relatively easy to understand and the way they calculated payouts was transparent. It only becomes inconsistent if the pool is losing hash and isn’t consistently finding blocks. In the new system the volatility of inconsistent payouts is shifted to Braiins and we have to trust them to properly manage their reserve AND tell us what a fair payout is.