All very fair points, however the far left appear to have their own rules and guidelines on what is racism and what isn't. You only have to mention Dianne Abbott on here and yellowtaxi is throwing race cards around like wedding confetti. I cant remember exactly what Sarah Champion said about grooming gangs, muslim Tory MP's agreed with what she said, Corbyn sacked her for being racist whilst everyone else except for momentum were shaking their heads. What goes around comes around.
As others have said, this may be a very convenient opportunity to rid the party of one of the group that moved the labour party from a political party that represented the working class to an anti Jewish cult, or it could be that schools are arguably the biggest obstacle presented by coronavirus and she has been invisible.