But I can’t use this at all at work (a pharma company) because it would leak confidential information. So anything they learn from usage data is systematically excluding (the vast majority of?) people working on therapeutics.
But you couldn't use it for work anyway because usage is non commercial. So you need to pay them to change the license anyway.
It might give them a bit, but AFAIK most institutions (especially non-American ones) aren't exactly overly happy about using closed American APIs in order to do science, especially not because API usage isn't reproducible.
Sure, they might be able to play around with some toy data, but for Google to actually get valuable usage data, then they need to let people actually use the thing for real things, and then you cannot gate it behind a API, it isn't feasible in a real-world environment.