Companies often comply with upcoming/expected legislation ahead of time if its expected to be cheaper to do so rather than having to rush things afterwards.
On one hand: It does seem a bit late to regulate that.
On the other hand: I used to work with a briefcase full of different phone cables, when the people that paid me had the swell idea to offer the service of transferring phone books between dumb phones and nobody agreed on how the connectors should be shaped. I think the number of them was >40. Some of them even looked identical in shape, but were not identical in function. Some were USB. Some were serial, with different voltages. Some used two data wires for serial comms, some used only one.
I was very pleased when we stopped doing that and I got to get rid of that stuff.
I'm also pleased that someone is making assurances that we won't go back to that way of doing things.
It's OK to have a common standard, and to stick with it. (It's also OK to draft a new standard when the old one turns old-and-busted somehow.)
(actually, which single-vendor connector are we mourning, here? I forget.)