The RMT and ASLEF?
Nah, seems to be Ms Sturgeon, Humza Yousaf, Labour and the Scottish press that believe that a publicly owned/run railway will resolve all the issues. ASLEF and RMT are just going on as normal.
I'm too young to remember how ScotRail faired under BR when delays and train failures occurred but I imagine it was pretty similar to how it's dealt with today. The constant attacks by political persons of all sides does not favours to anyone. There are robust contingency plans in place by ScotRail to deal with delays and train failures. One of them being running a service express to make up time so as not to delay potentially hundreds of other trains. Now, due to press and political pressure, they have promised to cease this practice during peak times. I very much look forward to the first major delays due to this. I only hope the management have the gumption to say to Humza Yousaf "we told you this would happen...but you thought you knew best...". Sadly they won't do that.