Is this a signal of a larger pivot in their business model towards targeting a higher-cost US enterprise market? A lot of brands have successfully transitioned to selling the same goods at luxury prices recently-maybe a webhost with a decent enough reputation can do the same.
Probably more they don't need or want the companies gaming this pricing at scale any more.
If you are spinning up a $5/mo VM, using 19.5TB of bandwidth on it, then spinning it down and firing up the next, you are a cost center.
This change boots those customers off the service entirely without having to write complicated ToS. The price change for average customers won't even be noticed on the next monthly bill, so it's likely seen as a win/win at the moment.
At some point the marketing dollars stop getting spent as heavily when you reach a certain market saturation. Calling this luxury pricing is certainly a stretch considering it's an order of magnitude less than the large cloud providers still. It's just not below cost any longer.