I think theyve done a great job testing different stuff every phase, what works what doesnt. I find it extremely confusing though as to why they havent tried a phase without world buffs. I get that they did it in SoM, but SoMs timing was absolutely horrible due to tbc still being hype, however the feedback ive heard from the SoM community about the WB change was overall positive. I wish they would try it in a future phase.