WWE had to jump through some hurdles to get the Raw Reunion show put together.
On most weeks, there are last changes made to the show because of Vince McMahon but this week there were changes made because some of the talent involved were flagged by medical and are not allowed to do anything physical.
Dave Meltzer reported before Raw that many segments were changed at the last minute because medical wouldn’t allow the original plans to happen.
No word on who was flagged but the assumption is that the medical issues were related to some of the returning legends.