In response to all the controversy he made a follow up video [0]. In the video he recreated the experiment, explaining the effect in a more technically correct manner and also apologised for not doing so on the original.
He also made it clear that the light globe in the original video did not receive enough current to light up.. it was hooked up to an alternative power source and an oscilloscope and upon receiving any signal above baseline would switch on the globe.
When i watched that follow up video and he didn't apologize he only said that he wasn't clear enough. In most responses like the other above linked criticism he doesn't apologize either and just gives out a long list of reasons why he's right. In the electricity follow up video it really seemed like he was saying more along the lines of "I was always right, you just weren't smart enough to understand what i was really saying because i was unclear". So I wouldn't say that he apologized, just doubled down and accepted fault with the lack of clarity but without saying sorry in any way.
It really put me off his channel for a long time. I still watch his channel to be fair and get a lot out of it, but his videos hit different after seeing him double down on criticisms and contorting controversy instead of just saying sorry.
He also made it clear that the light globe in the original video did not receive enough current to light up.. it was hooked up to an alternative power source and an oscilloscope and upon receiving any signal above baseline would switch on the globe.
[0] https://youtu.be/oI_X2cMHNe0?si=uprU-oZfk3ahKgx0