I had simular experience,these platforms are not interested in professional investigation or any investigation,they just lock you in using contract clasule and sometimes you can not even sue platform for contract violations because of their umbrella agreement

As far as I know our contractual law prevent being liable for damage caused by users own usage of a hardware or software. This is why tor browser developers arent in trial as liable for some scams that some users do using their software - because of their contract policy. So this excuse is jot valid - they locked bootloader jot because they are obligated or fear trial just because they do not luke private os which prevent them from harvesesting users data

The Same with Telegram, his fiunder - Nikolai Dutov still lives in Russia and CEO lives in UAE.