Good. This should happen on all airports now. Otherwise it's useless. You won't be flying from Heathrow to Heathrow.
It’s slowly happening at least in Europe: https://www.skycop.com/news/passenger-rights/airports-liquid...
You know they don't take your liquids at the destination airport, right?
Hmm, I once transited in Heathrow in a return flight from europe to the US and had to go through Heathrow security for whatever reason, where they subjected me to liquids rules way stricter than either my source or destination did.
E.g. 1 day use contact lenses and prescription creams all having to fit in a tiny plastic bag. So I'm happy for this change.