Fucking doublespeak (not you). If you can scan it then it isn’t e2ee. Words mean things. E2ee means that the two parties are the only two who can read the message. If there is a way to do any analysis on the message at all then it isn’t e2ee.
While I largely agree with you, technically it is still E2EE even if the encryption is very poor (e.g. hey look I shifted every character by one along the ASCII table).
Poor encryption could then be broken by a party in the middle.
All of that said this is a bit irrelevant, if the encryption is so poor the provider can break it at will, so can bad actors. We don’t use broken (bad) encryption for a reason.