I'm still all in on my EF glass and have no plans to replace it with RF. The PITA for me right now is the sheer number of mounts I'm stuck supporting due to the wide variety of work I do:I think we need to remember, even as good as RF Glass has been praised, most EF glass is still excellent and industry leading. It's not like it is a major step back. (Except for the new RF glass that has no EF equivalent, such as 28-70 f/2...) So it can and will fill a lot of needs, including people stepping up to R that can't afford to buy RF glass now and people that want to maintain flexibility with existing cameras, both dslr and M series.
I have EF, MFT, and APS-C glass which makes my kit messier than I would like. I may replace my T6s timelapse body with the RP and hopefully my GH5 with the R6 which would let me consolidate around just RF and EF. The problem with the RP (and any mirrorless) is that it has nowhere near the battery life of the T6s which is why I'm still on the fence.