Literally no target audience apart from the very small elite segment out of the group of die-hard-fans (a dozen amiters, if any.... ?) Who would buy an album from a Musical that nobody has ever heard of and that has been attended by .... how many thousand people? No-brainer really.
LE
The Edinburgh run had to be extended and all dates were sold out in 2019.
The run in Chichester in 2022 was also sold out all dates (yes, the theater was way smaller) and there was no option of extend it as there was another play scheduled after.
So I'd say that they were both successful runs, but maybe London is too busy for such a kind of musical.
The cd would be interesting as it includes several songs that are very easy to recognise that are from MK not only for the guitar but for the storytelling.
Also, it is true that it could had been a last chance of seeing MK publicly.