I don't see why they couldn't migrate to the newer version in what seems a reasonable timeframe. I mean, this post is from July 2020. Onion service v3 has been

I don't see why they couldn't migrate to the newer version in what seems a reasonable timeframe. I mean, this post is from July 2020. Onion service v3 has been around since 2018. It seems pretty reasonable to give over a year for migration.