From what I know of the accident, both via the tweets from the inquest and info already in the public domain, I do not see the manpower shortage as directly related / as the principal cause?
There are 2 direct (technical) questions to be answered in the accident sequence, one of which is more likely maintenance related than the other - and already discussed at the inquest. This latter point I think will not be repeated / has now been addressed. The other / initiating factor seems to be where the inquest is targeted?
NoD