I’m not seeing the relevance of YouTube and the One services to this at all.

I get that Big Tech loves to try to pull you into their orbit whenever you use one of their services, but this risks alienating customers who won’t use those unrelated services and may begrudge Google making them pay for them.

It's trying to normalise it, make it just another part of your Google experience, alongside (and integrated with) your other Google tools. (Though that's weakened a bit by calling it 'AI Pro/Ultra' imo.)

Idk if anyone will see these offerings more than just an added bonus, especially when you compare to OAI which asks for more for only the AI models.

I imagine this could be seen as an anticompetitive lever. Whereby Google is using its dominance in one field to reduce competition in another, adding it here is a way to normalise that addition for when massmarket-priced plans become available.

Tucking it towards the end of the list doesn't change that.