I get that people want to have clarity and be reassured that if they have moved or are moving to mirrorless that they are making the right decision. But, how is that in Canon's best interest?
Canon is not going to walk away from a huge share of their market. They are going to continue to make DSLRs that people want. They are going to continue to make R models that people want. They will use what they have learned making mirrorless cameras to improve their DSLRs and they will use what they have learned about DSLRs to improve their mirrorless cameras.
I use both. I like both. The R does some things better than a DSLR. DSLRs do some things better than the R. Would it be nice if one camera could do everything? Of course. But, there are inherent differences in the formats and as one who has been using both formats consistently, I don't know if those differences will ever be reconciled.
I fail to see why so many mirrorless users are so caught up in the idea that one format must inevitably replace the other. And, I think its just plain goofy to think that Canon has an interest in forcing one format on people over another. In fact, it makes far more sense for them to keep improving both formats so that people want to own multiple cameras.