They do; the article points that out.

However, this doesn’t work in enterprise environments. Companies want to download updates once and then deliver then themselves when and to whom they want. And that means they need to download all of them.

These days they’re all bundled up in one huge package so companies have to devote a of storage for update files that mostly contain the same stuff as last month’s.

Yeah. 60% more responsive for something infamous for taking multiple seconds to launch is depressingly bad. That’s “not even trying” levels of improvement.

The start menu should open essentially instantly (excluding optional animations) – 100 ms is good, 200 ms is somewhat adequate. They’re aiming for somewhere between 400 and 1200 ms.

I hope for them that they underpromise and overdeliver because this does not inspire confidence.