No, not yet. Your circled section has always been disclosed on business card agreements, on the application, and occasionally listed on statements. I'll have to look back but I think they may have just reworded some of it for clarity. Could they choose to actively look into each transaction? Sure, but I see no value proposition for them. One, it's hard to prove something isn't a business expense. I've bought all kinds of consumer things for businesses for legit business reasons. Almost anything can be justified as being for the business. Two, AFAIK the only downside is to you the card holder if you have any personal charges on it because you have little or no protections for admitted non-business charges. So upside for Chase is they get a swipe fee and then are not obligated to perform any protections guaranteed by consumer laws.
So personally I don't think that part is really changing. I think the bigger "issue" is higher in the cash like transactions where they call out third party bill pay services for potential cash advances. I think that's new, but it's been a while since I read my agreements. Some businesses legitimately use services like Plastiq and now those transactions could be CAs. That's a bummer. And how do they determine what's a third party versus a "service provider"? Some merchants/services use a payments processor rather than creating individual agreements. Offhand for me a few utilities and the tax offices use third party sites to accept CC payments. I hope they don't get blanket considered as third party. Guess we'll see what happens.
I found myself cheering for them.
Would have been fun to put in a bunch a few days ago!
Only wish I was looking about an hour earlier when it briefly hit the $20s. We still have some so fingers crossed! 
