That is pretty much the end of the Open Source story, because when the company restrict you in any way to make whatever changes you want to make on a hardware you own, you do not own it.
Maybe it just to buy another device and leave theirs alone. For a company run a business on, make pi your go to that bad. I have a pi 3 and used it 3 times.
Raspberry Pi is actively preventing enthusiasts from upgrading soldered memory to a larger configuration even when the replacement chip is technically compatible. The company says the restriction is intended to discourage unofficial high-capacity resales.