I certainly won't mention the dancing nurses @Janiie , even if they did seem to be doing a good job of raising morale. High morale is useful for bolstering the immune system and harmful levels of cortisol.
Tbh, I feel it's strange that forgetting about a bit of cake and exactly how many Downing Street workers were having their spirits raised by a few spirits has attracted so much criticism of the former PM.
This is the man who wasn't always allowed security clearance even when foreign security and PM such were his alarmingly scatty habits and previous dalliance with Russian oligarchs ,without his security detail in Italy. The man who signed an extremely problematic deal with the EU. The man who unlawfully prorogued Parliament. Who offended many minorities with his choice of vocabulary. Amongst other things.
With this track record, it makes perfect sense for his supporters to feel he was hard done by over misleading Parliament.