That is not at all what he said though.
He said that he had spent the weekend reading the report and spoke of the present not the past when talking about evacuating ("would" not "would have"). He was clearly talking about what anyone with common sense would do *now*, with the knowledge of what happened at Grenfell.
Of course the opposition deliberately skewed it and jumped all over it, forcing him to issue an apology for something that was only offensive when misinterpreted.
SteveW