I don't think that's a fair comparison. Age was never meant to fully replace GPG, so complaining about missing features it was never meant to have doesn't make sense.

The only valid criticism is about its handling of corrupted data, but for that too you can use an external tool like PAR2 to generate recovery data. I do this with my GPG backups and other data as well.

I like that age follows the Unix "do one thing well" philosophy, and that I can use other similarly scoped tools for other features. There are still some things I'm missing, but these are slowly being worked on[1,2].

[1]: https://github.com/FiloSottile/age/issues/137

[2]: https://github.com/FiloSottile/age/pull/132

I am not sure how PAR2 helps here if your encryption utility refuses to return any data in the first place.

I was responding to a comment that said that age was a "standard replacement" for GPG.