It's not just that, they have banned any mention of her name. You literally cannot even type her name in private messages without the message at least getting deleted, if you aren't banned.
I seriously doubt that. This is a claim I've seen in many places (unsubstantiated) but I find it hard to believe that her name is triggering bans. Dead name? Sure, I can believe that and, again, I have no problem with this.
They released a post saying they had a script set up to autoremove any mention of her current name, which often came with a ban.
That's some Chinese Communist Party level censoring.