How do you know Doncaster wanted it moved?
Rangers wanted it moved. Approached Motherwell as they are entitled to and is correct procedure. . Motherwell agreed (like it or loathe it). BOTH Clubs approached Spfl who agreed on basis Sky confirmed they could rearrange their Schedule. Police then approached and, after sorting out Overtime costs and manning details, they agreed. It's not a big deal
Game over.
Some may not like that the game was moved, perhaps through a hatred of Rangers, Burrows or both. But no way do I believe Motherwell were forced to agree to the change. Other countries rearrange games all the time to assist their teams in Europe. For some reason folk in Scotland have an issue with it.
Could the Club have communicated better and was the change at short notice? Yes. Hopefully lessons will be learned.
Sadly, I think Superward was spot on in his last paragraph. Given the number of "likes" that post has, it appears many agree.