A lot of people became millionaires during his tenure, suppose it’s not surprising that brings a lot of loyalty. Doesn’t necessarily mean it’s the right move for the company though.
It is almost certainly the case that many of his defenders here and elsewhere have a meaningful financial incentive to defend him and hope for his return. The good news is that they're easy to spot, sycophants and boot-lickers for money almost always are.
Maybe I'm too cynical but that is exactly what I too thought what the cause of this was.