Having read Thom's article I didn't see it as a complaint especially against Sony. The basic message that I took was that lenses were important to a interchangeable lenses camera system. Sure, Canikon have a huge catalogue of lenses. Good marketing. I suspect that 99% of us use 3 or 4 lenses most of the time. I don't see any mount that can't provide the basics. When you add in Sigma, Tamron and Samyang, to name just three, what are you missing? (T/S may be

.). I think Thom's missive missed the point of mirrorless bodies being able to use just about any lenses, if you are in the 1% that must have a 58mm 1.4, or whatever.
Any camera system owner can sit down and say, "my mount is not going the direction I want it to, look what x are doing over there". I've seen just as many Canikon user complaints about the future of their mounts as Sony, Pentax and the rest.
Who knows, perhaps great glass with inbuilt sensors is the way forward, like the RX10

Nex 5, Nex 6 (IR), A7M2, A99 and a bunch of lenses.