Quite frankly I don't really understand why some people are so negative about the whole thing. Personally I couldn't care less about the getting together update because I don't care about Minecraft on my PS3 (tried it and hated it) nor do I want to bother myself with Windows 10 (still using 7 right now) so the Win10 edition is also something I don't bother myself with.
But even so... I'm still having fun with Minecraft. My normal gameplay consists of Minecraft + OptiFine + Lithos:Core faithfull and thats it. As one can expect I'm defining my own games and I'm having fun in the pre-determined world. Why would that suddenly change depending on what Microsoft does? I don't see how this negatively affects me in any way.
Even if the Minecraft Java edition development would come to a halt then so what? It's still the game I love playing.
Thing is: I don't think its Microsofts fault at all, it's the players fault. Well... figure of speech, I don't think there are any faults here actually.
There are roughly speaking 2 kinds of Minecraft players in my opinion: those who can entertain themselves with the game, and those who need to be entertained. The latter can come in many forms: people who enjoy playing the game but not on their own, people who constantly ask you to check out their buildings and to come visit them, people who are always around when server events are being held and who will even be sad if they missed some.
It's not really a negative thing, but Minecraft is mostly a game where you are in control, you decide how you want to play it. However, I get the impression that this approach of total freedom is simply a little bit too much for some, they need focus: a goal to work towards and objectives and problems to overcome. And that's something I think you see happening a bit more on the consoles.
It's also why servers such are MinePlex are so extremely popular: players don't have to do things themselves but they can just let themselves be entertained.
Take Realms... Definitely not my favorite way of playing Minecraft, but I can still recognize the potential it has. For starters by making it a lot easier for (less tech savy) players to share their work with others, but it also provides a quick and easy way for other forms of entertainment through the use of mini-games.
And sure: the Java edition has all of that too, I'm well aware. Somewhere this (or last) year I even spend half the evening playing battleships with my girlfriend, and all within Minecraft. It was a premade map I downloaded and seriously fun! But it also required a little tweaking to set it all up (did you know that you can even remotely play together through use of "Open to LAN"? All it takes is knowing the port number) and as said: I'm sure not everyone will be able to do that.
In the end all Microsoft basically does is cater to all that.