Not to mention that while the Tories (along with the Lib Dem for 5 years) have indeed been cutting unnecessary regulation, the have been zero (0, nada, nil) cuts to regulations on fire safety that would have affected this case. It is a rather morbid and twisted sickness that leads one to try and score party political points from a tragedy that is still ongoing.
Incidentally changes to regulations to require sprinklers and to ban cladding like this were both considered and rejected by the Labour government while in power too following a less serious but still significant fire in the late 90s. So this really isn't party political.
I love the weasely wording. Successive governments were told to add regulations (to get them to the same level as the US and the continent), ones that would almost certainly prevent a tragedy of this scale, and each of those governments refused to act.