> I predict we’ll see other vendors removing similar bonehead “features” very very quietly over the next few months.

Absolutely this is what will happen.

I don't know much about the practice of AV definition-like feature across Cybersecurity but I would imagine there might be a possibility that no vendors do rolling update today because it involves Opt-in/Opt-out which might influence the vendor's speed to identify attack which in turns affect their "Reputation" as well.

"I bought Vendor-A solution but I got hacked and have to pay Ransomware" (with a side note: because I did not consume the latest critical update of AV definition) is what Vendors worried.

Now that this Global Outage happened, it will change the landscape a bit.