1) Patents mean very little, and being in the "top 5" patent companies means nothing; literally anybody can apply for patents for anything. I could come up with a new way of folding paper in half and patent that.
2) That poster is right in that Canon bodies are significantly behind every other manufacturer in terms of sheer technology. That has always been the case except for a few brief years around 2003-2006 where Canon pushed into digital a bit harder than everyone else and managed to have the highest-resolution and best-quality sensors for a little while. Other manufacturers' cameras were still more responsive, though.
But that's fine because that's how Canon has operated since the mid-70s. Camera bodies are loss leaders; lenses are where the profit is at. Lenses are also what control the market. You can make the greatest body in the world but if you've only got one standard zoom lens for it and you can't sell the body at a price which makes a profit anyway, what's the point? When Canon introduced the A series of FD-mount cameras, they were relatively affordable; the most bare minimum you could get with auto exposure. The point of those bodies was they gave you auto exposure and access to the biggest lens selection in the world, and that A-line sold brilliantly. Then when it came time to update again, Canon elected to ditch the FD mount entirely and came up with the EF mount. The first EF bodies were utterly awful but the lenses were mind-blowingly groundbreaking, and no other company was able to match them for years, by which point Canon had gotten around to making some decent bodies and even better lenses. That's what kept Canon in the #1 market share spot for decades.
Now we're seeing it again with the RF launch. Great mount, groundbreaking lenses; pretty crap first body. And that's fine. Systems don't exist with just one body. New bodies get added at different price points and existing bodies get refreshed every few years. Camera bodies do not hold their value and never have, outside of medium format. (Even large format systems don't hold their value as well as medium format.) What's important is the lens mount is good and the new lenses are equally good, and we've already seen that the RF mount and lenses are exactly that.
Y'all need to stop being so precious about Canon—remember, a multi-billion-dollar conglomerate corporation is not your friend, nor is it your personal identity—and accept that not everything Canon does is going to be top-class. And it's fine. It's all fine. Just like how it's fine that Fuji cameras still don't have good battery life, or that Sony's lenses are either sub-par or comparatively overpriced, or that Nikon is just kind of in the middle of everything being a jack-of-all and master of none. Every system has its ups and downs, pros and cons. Canon's happens to be that they don't deliver top-of-the-class bodies. That's fine. It's all fine.
People who don't acknowledge that Canon's bodies have nearly always been a weak point for the company, but that it's irrelevant because the market is decided on lenses and customer support rather than body specs, are willfully ignoring history.