I'd be surprised if any legal department in any company with one will not freak the f out when they read this. They will likely loose the biggest customers first, so even if it is 1% of customers, it will likely affect their bottom line enough to give it a second though. I don't see how they might profit from an in-house LLM more than from their enterprise-tier plans.
Their customer support will have a hell of a day today.
Their customer support will have a hell of a day today.