These funding rounds just mean we are using existing tools. The AI winter is regards to discovering new AI techniques, not re-applying existing discoveries to business.
There's so much hype around "AI" right now that I wonder if we're headed to a winter where you need very strong business justification to get funding to apply those existing tools. It seems like anyone with a problem to solve is spending millions to throw machine learning at it, just to see if it will stick. That's not sustainable.