No, you are demonstrating that you don’t understand how people feel about this stuff. They hate it. They don't treat it as an exercise in tidying up formalities about things that were somehow settled long ago, which is how you always try to portray it.
You're missing the obvious point that rapists go into womens prisons all the time - women do rape other women. But all those people who care so much about women's rights don't care about that.
The case in question of course happened under existing legislation, and the process went exactly how it was supposed to go, and always has happened, but the media jumped on it seeing an opportunity. The person in question was initially put in the womens prison, but segregated from all other prisoners, until an assessment took place, after which they decided to put them in a male prison.
The mistake the SNP made was caving into the nonsense and announcing a change to this process.
Nothing about the GRR bill changes any of that process.