They decreased the rewards value (in sat/RP) due to the increase in fiat value of bitcoin and they don't consider the FUN price for that at all.
The cost to buy premimum membership has decreased while the rewards value (in fiat) hasn't changed and that may be why they don't want to credit the WOF spins anymore.
Interestingly, the rewards have gone down in fiat value. When the BTC price reached a certain level, they decided to peg the base reward amount to $0.02 so they could give less than 50 sats but we were still getting the same fiat value. After a few months, they decided that $0.02 was too much so they gradually started decreasing the value. Today the base reward is worth $0.0105, almost half. According to TheQuin, they originally budgeted for the base prize to be worth $0.008 and that was why they decreased the value.
The base prize was actually 0.8 cents when WoF was first introduced so you're still getting well over what we budgeted for.
Considering the changes to the odds, the 1 cent we are currently getting, and some higher prizes on rare occasions, should still be within the original budget, but the original budget might not make sense anymore if they don’t generate enough revenue to subsidize the WOF.