If anything, it enables more companies to adopt Edge without concern of breaking support for their legacy applications.
We see that Developers are the ones held back by older versions, and we see this as a huge win for them.
I'd love to see more messaging around the rollout intentions; plenty of us out here still supporting IE11 (non-Government, non-Enterprise) and trying to read between the lines to a point where we can start legitimately calling the time of death.
Seems like a no-brainer.
But costs don't hold us back from developing amazing new features [for developers and consumers] for the future. <3
-- This is largely work that already existed in the older Edge instance, just made more seamless and with a proper allow-list to make it more secure.
It didn't take zero work but it didn't need an overhaul of the DOM or anything like that.
Nor does it have to be the same team/people working on both.