Of course the mirrorless market is not growing when the two biggest manufacturers don't make it grow.
I'm a Canon user and have been waiting for 2 years now to be able to purchase a mirrorless SYSTEM.
The Sony a6000 and available lenses are still far better

((
I do NOT want to buy other brands, having a gear set with a mix of different incompatible stuff, different handling, etc, is stupid.
I would also add, that Canon cameras are not supported in special fields!!! I'm dreaming of an M line camera that I can use for travel, underwater and aerial. Still not really possible

The M line is barely supported for underwater, and not at all supported for aerial. Sony is way ahead in this matter too.
As for the Sony A7 series, as much as I love the innovative approach and would love Canon to do something similar, since you end up using the same heavy lenses, all together, even a small travel set (let's say body + 3 lenses) does not become much smaller and lighter.
I think one reason for why Canon is terribly slow in the mirrorless filed is that they are affraid of sacrificing the APS-C DSRL market. Let's admit, you have (or can easily have) the quality and performance of an APS-C body + EF-S lens in a compact size mirrorless setup. With a proper mirrorless system, the whole APS-C DSLR technology/idea becomes obsolate...while they have most of their income in that market.
And at the same time, there are LOTS of people who do not need a DSLR, but they buy one instead of a compact (often with just a kit lens), just because it looks more professional. Would they buy mirrorless which has the same performance?
What is "funny" though, that is the most natural thing that we always want things smaller and lighter and Japan was the country which made it possible for all of us, not just in photography but in the whole electronics field. Now they seem to forget that most basic drive.
The whole camera design and concept is obsolate as is, having the same size, weight and design of professional cameras for decades. Canon's last innovation in this matter that is worth mentioning was the 100D, even though it's not real innovation, just a step, a decision....they made it. It could have been made anytime.
In my dreamland, even professionals are using EOS M size bodies, with the possibility of addons for better grip, more battery and processing power, memory, etc. A modular camera design, where the user can choose the size, weight and performance of the camera and configure it for the situation the camera is needed for. I keep it small and light for travel but can make 2-3X size for studio, sports, whatever.