In what way am I a "naysayer"? By saying, yes, I agree that Canon will be phasing out the EF mount, but it will remain legacy tech supported for years to come? That's what I've been saying for nearly two years. And two years ago I clearly wrote in this forum that I expected a glide path, that we'd see one final 1DX and maybe one more 5D. And was met with howls of derision and hostility.
I did not like feeling that Canon, and the industry as a whole, was using a gentle broom to sweep us towards mirrorless. I was worried, two years ago, about making big EF purchases, as I thought they would not hold their value. But then I tried the R, after it had been out for one year, and liked it so much that, in fact, I've gone all-in on mirrorless (except for the hardy little family-fun standby, my 80D, and a few lenses to use with it).
It's not only the recent news that Canon reps are publicly saying EF is being put on ice. It's the accelerated schedule for new Rf bodies. And it's the realization of how great it is to shoot with a good mirrorless camera and the amazing lenses Canon has made ONLY for Rf. I firmly believe the more photographers who try a good mirrorless will, sooner or later, give up on dSLR's, especially as the EVF tech improves and IBIS finds its way into pro-type bodies. And it's seeing other long time photographers I know personally making the switch or planning for it soon.