It sounds like you might have missed this comment -
This is probably as close to parity as the two apps will get, aside from anything else the release schedules aren’t perfectly in sync so one app will often have at least one more piece of functionality than the other. Most users experience of the apps will be parity so I think it would be silly not to describe it that way. Small print doesn’t work very well in tweets.
You are technically correct that’s it’s not parity though, I’ll give you that.