A bit of an update here: I decided to do it. Basically, 1st you need to desolder the flex cable, starting with 2 positive wires and not shorting them to other stuff (I haven't tried doing it myself, but it doesn't seem like a good idea)
Then solder everything but positive, isolate, solder positives, isolate. I used hot glue since I'm in the middle of nowhere and too impatient to wait for some more appropriate stuff to be delivered.
Then install the contraption into the case which doesn't fully close now, but it's unnoticeable when plugged in into the laptop.
I think ppl just got pissed with the fanboys unironically asking to RIIR everything. The language itself is comfy AF, tho