yes. i understand that. Real question for me is "what for"? Extreme lenses have extremely limited applications and serve extremely small market niches. Canon is showing off the optical design potential of the new mount. And a few people will buy (or rent) them. Even fewer will be able to create truly "innovative images" with them that would not have been possible with "lesser", slower lenses, eg with a more irdinary 24-70/2.8 or 14/2.8. that's fine.
But, myself and the vast majority of the (potential) market are much more interested in "decent, compact and affordable lenses". Not only for APS-C (EF-M) but also for FF image circle (RF). Instead of currently 2 systems (crop and FF) i want to have only one in the near future: mirrorfree, as compact size as possible, "affordable", FF image circle. and i know many others who are looking for exactly the same.
i therefore expect the current Canon (and Nikon) "lens designers' R and Z honeymoon" to end soon and business priorities taking over again: launch of "lesser", workhorse RF lenses that make more sense for vast majority of customers and for Canon's balance sheet.
size/weight/portability of gear is very important to me, but i also want "full frame goodness". A smaller, less expensive "R50" body (same relation to EOS R as M50 vs M5 in terms of capability, size and pricing) along with a few compact, good and affordable non-L f/4.0 zooms and f/1.8-2.8 primes will serve me fine. eg RF 12-24/4, 24-85/4, 50-150/4.0 and 24/2.0, 35/1.8 (launched already), 50/1.8, 85/2.0, 135/2.8.
i don't need imaging gear to show off. i want unspectacular, inconspicuous, compact and light equipment for my non-professional, but enthusiastic use, that allows me to capture and create images within the limits of my equally unspectacular creativity, wallet and imaging situations.
so - f/2.0, f/1.8, f/1.4 zooms all fine and well, but "not needed here".