My point was with what is available the M series is massively smaller than ff cameras with ff camera lenses. I personally believe the vast majority of people here underestimate three things, first is how much money the M series actually makes for Canon. Obviously none of us know an actual figure but seeing as how the Rebels used to be the cash cows and the M is a similar success I'd guess quite a decent percentage.
Second, Canon see the M as a size thing, they see it as a major selling point for the mass market that want better than phone quality images but not the size and price nor ultimate system flexibility of the ff cameras and lenses. We will never see Canon EF-M f2.8 zooms, never. Canon do not see the core customer base for the M series as giving a damn about f2.8 lenses, yes some people here might like them, but Canon do not see them as representative of the M mass market.
Third, the vast majority of people who buy into ILC's don't actually buy any more lenses, they get the kit lens, maybe a two lens kit, but most don't give a damn about how big or small other lenses are because they are not going to buy them anyway. But if they do get another lens, a macro or a prime, they don't want it to be the size and weight as the camera and zoom lens they already have.
Personally I don't see Canon as needing to do anything at all to continue dominating in the APS-C ILC space, no more lenses and little but minor updates to the 6, 50 and 100 series, sure I personally would like an M5 II, but truthfully I am not the M series primary market and I understand that simple point. Every camera doesn't have to be attractive to every customer even if we are GAS addled camera freaks.