People who tend to go around suing and threatening other companies as a means to be anti-competitive tend to be looked down upon by society so IMO Canon should tread carefully in this area.
I think part of the reason people go to Sony is because Sony has made the E-mount open to anyone who wants to license it and thus gives consumers more options. They are still going to buy a Sony camera, but they may not buy a Sony lens, but Sony likely will get a cut of the profit (through any contracts) as a result anyway, so for Sony it seems like it worked out fine to allow third parties to develop lenses for their mount. I personally don't see why Nikon and Canon have to be so anti-competitive about it. To be honest, I have the lenses I need now, but there are some pretty compelling third party lenses I'd like to shoot with. But they aren't available for the Z or RF systems, and the only way to get to those lenses is if Nikon/Canon licenses the mount, or I move to Sony. I'd rather not, but this is likely what Canon and Nikon will end up doing (pushing people away) if they don't get onboard. Theyve had a few years to get their OEM glass out, now let the third parties fill in the gaps for the enthusiast market. Pros will almost always buy the OEM pro glass, along with some serious enthusiasts, but beginners usually won't and will prefer third party, so if anything, they need to do that to let people get into the systems on their own budget and work them up to the OEM glass.
