People are over-reacting and far too impatient.
The Cemu site is rarely ever updated and Exzap is still making a ton of money on Patreon.
He's not obligated to update the site and its probably a low priority.
What you really want to worry about is what actual Patrons begin saying and I haven't seen anything from them yet.
Take it from me, I have an actual Patreon project myself.
Lastly, Nintendo can't do anything about this.
The only reason Nintendo went after others is because they used copyrighted content in their experiments.
If Nintendo went after Exzap, they'd have to go after every developer making any Nintendo console / handheld emulator and the entire emulation community would be in an uproar.
Take into account it would make Nintendo look even worse and no-one would want to play their games anyway.
Not only that but if that were true its like Microsoft or Apple going after virtual system emulators for emulating their operating systems.
Also, Nintendo won't make money from any of these developers at all... a mere $2,000-ish is pocket change for them.