Counting robots is like counting circuits in a piece of electronics: It's Meaningless.

However what would be interesting is if they ever have a situation where the number of humanoid robot employees outnumbers human employees. Once someone is able to run an entire large corporation with no humans at all it will be a big milestone I guess.

But there's no real driving force for this to happen, because the humanoid form factor is not necessarily ideal for most kinds of industrial applications. And a lot of the "Automation" will be AI Agents, which have no form factor at all, being purely knowledge based.