I'm sorry, but I have to disagree with you.
The R32's have single handily saved RTO multiple times since the R179's came onto property. The TA should have learned that scrapping cars early before all the replacements were in was a BAD idea. Let's not forget the R44 fiasco.
I do understand what your saying, I truly do, but keeping at least 50 ten car trains of R32's on strictly reserve status until all the R211's came in would make sure that passengers aren't getting affected from missing trains and longer headways. If the wasn't suspended on QBL right now it would've been even worse with the car shortage.
They managed to run them with switching cabs for 50+ years. They can do it for another 9-10 months, or however long until all the R211's are delivered.