For $29/mo, we provide access to advanced level technicians who will answer your questions on any Macbook board related matter to the best of their knowledge promptly & walk you through how to solve your problem so you can deliver a working board to your customer.
In that area it will never work. I have tried to dremel that out in a livestream and got to the point of dremeling that entire section of the board off just for kicks, and still shorted - that's one for the bin.
Oh wow, 2 people saying it is trash. Now I would definitely try and fix it, no joke. I'd like to see it fixed, but I never take the time for these projects.
I've repaired several boards that looked like that, but it always takes a long time (several hours of scraping, isolating, conformal coat protecting, running wires around holes, etc). Not worth it unless your profit margin is respectable for that repair.