But Northern's handling of many issues has been sub-optimal so it will be quite hard to split the effects of that from was is NR's fault. NR shouldn't be paying for Northern inabilites and poor management that added to the problems they actually caused.
I'm not defending Northern (or any of the different parties responsible for the May 2018 shenanigans) - but someone will be paid to attribute "blame" here, in the way that someone has to apportion "blame" when trains are delayed.
I'm just trying to put it into context - it's a little like one train being delayed (and someone having to foot the bill for the compensation claims) - but on a massive scale. Someone will be to blame, someone will have decided that the penalty for failure was a smaller price to pay than actually tacking the root of the problem.
The concern I have is that Northern end up like GNER did - so dependent upon the infrastructure problems/ delays and the resultant compensation that they factor in a certain level of income/profit from such streams - their revenue forecasts end up with an expected level of compensation from Network Rail. With GNER, once the railway got back onto a sounder footing, the "cash cow" of compensation payments to the TOC was no longer there and the economics became a lot harder (I appreciate that GNER's problems related to the parent company too - I'm not trying to rewrite history).
If Arriva think that Northern is a viable franchise
based on certain levels of Network Rail compensation, and Network Rail get their act together, then the TOC may be in for a shock!