That doesn't mean anything.

If you "by default" don't log, then when receiving a court order, there is nothing to hand over which is the entire point. If,magically, logs from the past 5 years when they said there were "no logs" show up, that means they were lying about no logs.

Just like they now advertise that your data is fully end to end encrypted and even they can't see it.

If, with a court order, they are able to decrypt and hand over your data, then they were lying in the first place that they couldn't read your data and it isn't end to end encrypted

Court orders aren't some magical thing that go back in time and redo history. The entire point of these heavily advertised precautions is exactly against court orders by corrupt, tyrannical governments using the law as a political or fascist blunt weapon against citizens.