We know that Alysa Butler felt unappreciated. I'm hesitant to believe the NYT is even representing her opinions fairly. If you read what they've written about carefully, the article doesn't have her accusing Coinbase of any sort of racism, the NYT is just weaving her experience into a story that they construct elsewhere (normal practice in newspapers). A 'diversity problem' is different from racism. 25 year olds being ignored in meetings is not a new phenomenon either in my experience.
Yeah, I am completely ignoring that. "My presence in the workplace was excessively celebrated" isn't a complaint. There is nothing there to respond to.
If you want to argue that could technically be racist behaviour I agree, but typically when people talk about racism they are actually going to serious issues like money, power or personal safety. Photos taken for promotional material is not something that needs a defence - it is a frivolous thing to argue about. Any company might do that.