Perhaps Canon's biggest markets are beginners who buy lower-tier Rebel DSLRs and M50s, and retired old men who buy all the latest and greatest top-tier stuff often. It could be that the mid-tier enthusiast/prosumer market is not big enough to be a priority. Could this be how Canon is planning to rationalise their product lines?
We do know while the RF L-series lenses are replacing their EF counterparts, no surprises there. If the budget RF lenses are replacing both the old APSC lenses, and the various tiers of regular EF lenses, this will result in a drastically rationalised two-tier system, where the choice is either go budget, or pay the big money and go pro. Pure speculation, but food for thought nevertheless.