[squarefoot]

Both extensions are FOSS, so anyone with enough time and skills could say extend the uBO engine with the more powerful uMatrix interface, where the latter could be accessed through an "expert" option for more granularity, then submit the result to gorhill for evaluation, so that he would have a single codebase to maintain.

[freedomben]

Do you actually know that gorhill would be open to receiving that work, or are you just guessing?

That's an enormous amount of work (for someone totally unfamiliar with the codebase that would have to learn) to undertake on the off chance that it would be accepted.

[squarefoot]

Just guessing of course; I'm sure the amount of work involved would be significant, but I also wouldn't underestimate the power of teamwork on the Internet, especially when something so important (I''d dare to say vital these days) as a content blocker is involved. As for the implicit "then why don't you do the work yourself?" - Heh, I wish I had both the skills and capacity to focus on a project of such complexity.