The Minister in that clip was absolutely hopeless. She hadn’t a clue and blustered.
The SNP spokesman was referring to the Fixed Track Access charge (not the variable rates which are identical in both Scotland and England) which, in the words of the then Mr Justice Sullivan, is “an artificial construct”. It is the balancing sum that is required to maintain that part of the network, once variable charges and grants are deducted from the total funding need.
Scotland suffers from a large amount of need for day to day infrastructure spend with not a lot of traffic going over it’s route mileage so the variable element won’t cover the same proportion of total costs as, say, SWR. So it will need a proportionally larger Fixed Track Access charge than most, if not all, of the English operators to cover those residual NR costs in Scotland.
If both the SNP spokesman and the Minister could actually read the ORR determination for CP6 (2019-24), the details and reasons for the large FTA for Scotrail are in there.