First of all, I don't believe these rumors on the interenet.
BUT if this is true, I think we all kinda saw this coming. Schweinsteiger was not a big part of Van Gaal's plans to begin with, he played sparingly in the Premier League even when he was not injured. When Mourinho came in, we knew his methods, and we probably in the back of our minds were already expecting a complete squad changeover with Mourinho kicking out many senior or underperforming players.
While that did not happen for some of the players we expected (Memphis, Carrick), it did happen with Basti. For me atleast it's not very surprising, but very saddening.
To be fair, his quality (he was a world class player, no doubt) started going down almost 3-4 years ago.
You either retire a hero, or you play long enough to see yourself become a villain.
Not trying to pick on our coach, but this whole situation is really sad.
It's understandable that Mourinho doesn't want LVG's left over and some old-over paying players (at least I that's what I think).
The sad part is, when Mou explained that Schweinsteiger was no longer in his plan, he's better leave. Schweinsteiger wanted to stay and fight for his place (ofc, high paid). Mou didn't like it, and there HAD TO BE some sort of huge fight.
But now, Schweinsteiger expressed wanted to train with the reserved team to keep fitness and Mou even banned that. WHAT THE HECK??? He is banned to play for ANY TEAM under Mourinho's.
I never support this kind of treatment. If this was a case alone I would get it, but it also kinda happen to Mkhitaryan while we are struggling, that seems suspicious. NOT to mention Mourinho has reputation with treating players weirdly (Mata, Iker...)
http://metro.co.uk/2016/10/30/manchester-uniteds-bastian-schweinsteiger-banned-from-reserves-for-the-second-time-6223310/
https://www.thesun.co.uk/sport/football/2079699/bastian-schweinsteiger-humiliated-as-jose-mourinho-bans-him-from-manchester-united-reserves/