This is generally very common. Do you remember the passwords that you used about 10 years ago? Probably not. However keep in mind what if you dug a hole in the earth somewhere, hid your gold there, and 10 years later you forgot where you buried it, whois fault would it be then? Which you blame gold then because you forgot where you put it?
Then there are those that mined bitcoins during 2009, found some blocks, since it was worth nothing, when they upgraded their computer they threw out their old hard-drive and those coins are gone forever. This is also fairly common, look at the amount of unspend coinbase transactions from 2009-2010.
The solution would've been simple for Peter: if the access to his wallet would've been blocked, he should've pulled out the paper he should have written the seed of his wallet onto in 2018 and just use that as a recovery.
Don't blame the dollars if you lost your wallet in a bush. It was yours, you had to secure it.
But whatever.. take a look at his Twitter profile and you'd see for yourself what his opinion on BTC is. That alone gives me a bit of doubt about the legitimacy of his "corrupted password" tweets, although at the same time I do believe he lost access to it.
But now seriously - this is about a $50 gift from 2018. Is this debate really that important for the $50 he lost?