A list of grievances of the US government and I think that they are directing the arrest of Pavel durov
"The company can gain access to messages unless users select a secret chat option with end-to-end encryption, according to two former employees. On at least two occasions, the company has retrieved the messages of former employees, one person said." LOL, the pretend privacy branding
All of this fuss over various non-aligned messaging services is solely to further entrench imperial surveillance capabilities.
If it had anything to do with their usual excuses of counter-terrorism or child abuse they could just use the resources at their disposal and deal with most of it. Even when people use encrypted messaging the rest of their opsec is sloppy enough to find a way in if you're so motivated.