The EU has protections these sort of brand dilutions. You can't call it cheese if it doesn't come from milk and you can't call it milk if it doesn't come from a teat.
Milk is already used for non animal milks as coconut shows, so I don't see this doing anything pro-consumer.
https://www.merriam-webster.com/dictionary/almond%20milk https://www.atlasobscura.com/articles/almond-milk-obsession-...