Because that's what it means to be a hacker. Yes, installing Firefox is simpler (and I'm a Firefox user) but I respect the effort to overcome Google's measures in disallowing certain addons.
The effort to overcome the community's chance at discovering the workaround?
It's however still interesting in the sense that it might be fairly trivial to change, so chances are the next adblockers are going to ship executable that wrap chrome, modifying something like that at launch, allowing their extension to make use of it.
Obviously Google is going to hate it when random popular extensions start nagging users to download and install "companion" software in order to work, since that will train users to not think twice about these things and bypasses legitimate security efforts.
But Google made their own bed - and that of their users. Now they all get to lie in it together.