Previously they were selling a 1-PC OEM license and a 3-PC Retail license. The current license allows only 1 PC but it's a retail license, not OEM: it's not tied to new hardware. They may have phased out the other licenses but the remaining one has been changed to Retail so I don't see why they shouldn't be considered at the same level.
No, previously they sold both 1 liense and 3 license versions, they have not crippled anything, just removed the 3 license version.
It could even allow an infinite number of users but why should I care? It's not like you can do group buying with that. Does that justify everybody else have to pay much more just because Microsoft thinks it's cool to let a 5 years old Timmy that would have very likely just as content with Wordpad have their own Word, Excel or Powerpoint license? It may be better for families but it sucks for many other people.
your example sort of fails on a few important details though. the MS 5 users license can be used by multiple people on 5 computers at once, by 5 different people. the Apple license you compare it with is per person.
I think it's pretty backwards when it forces everybody to pay more, before I only needed a license for 3 computers, now I need to either buy 2-3 licenses or pay the equivalent years of Office 365. There may be of course cases where the new licensing could be more convenient but there are tons of people who are going to get screwed with this new pricing scheme, people who just wanted a single office license to use on their personal devices like most people do with commercial software. Also even if the license was impractical (I actually never had problems reactivating it after every computer upgrade) they could have used the same system they use for office 365 on normal office licenses so that wouldn't be a problem.
there's nothing backwards about this, just different ways, and for most people the MS version makes more sense, for those that the 365 license don't then the device license makes more sense.
And while they previously had a 3 device license, (it was actually 3 devices 1 person if you read the license correctly) it was very impractical insofar as reinstalling and such goes.
The title of the page was clear: "News: Revision to Windows Vista retail licensing terms". It wasn't the OEM, it was the retail one (additional source: here), if it was just the OEM version I doubt anybody would have really cared.
Also the Vista thing was an OEM license and that's how OEM licenses are supposed and always was supposed to work.