Most likely offended one of the wiremans at his previous customer house. If you join the chargeman group at fb. Almost every week got members there open a post about him. Some of it were justified but most of the time they are making fun of him.

The guy's qualifications are a bit questionable. No ST cert for his company. And he also probably dont hold any pw/bo cert. His videos can be informative if you take it with a grain of salt.

It highlights some of the weaknesses at most malaysian homes in terms of wiring standards. Just dont go worship him as a guru or something.