I would assume in some ways it’s been a more complicated case.
On The Smiler it was very clear from the outset that the cause of the accident would be something with mechanical or human/process error. No action of those harmed would have affected the outcome. In the case of Drayton though I suspect there will have been lengthy enquiries to evaluate and understand the full picture of events, understand to what extent the events were bought on, such as guest behaviour, and also understand what could have been done or was already in place to try and mitigate that (signage, CCTV, barriers, etc.).