"If that is the case then the whole show was blown up over nothing."

Directly lying to the House of Commons, and persisting in doing that, is no kind of criminal offence, but has always been seen as a fatal offence for any government minister, including a Prime Minister, requiring them to resign. In fact Boris Johnson this week stated he agreed tgat to be the case.

Evidence confirming that Mr Johnson has done that is very far from being "nothing", however trivial the legal penalties might be.