It's been really weird to see everyone's reaction to this thing. Surreal almost. Didn't see Notch get this kind of hate when he shared his bonus with all employees. Perhaps it's because he works in the financial industry?
He's upset a lot of rich and powerful people who don't want their poor underlings to start asking why they aren't benefiting from the company's growth or profit margins.
Essentially he upset the status quo.
Then it sounds like to spite his brother (the minority partner) he came up with a self-promoting way to give those profits to other people; and enrich himself through speaking deals, etc. again at the expense of the minority partner.
It could be. There is definitely an adversarial relationship between owners and employees (both are competing for the same pie, in most models) and I'm comfortable guessing that many in the finance industry (including the industry media) identify more strongly with owners than employees. If such an identity is stronger, it's more than reasonable to expect that those with that identity will show undue bias towards those who seem to have a similar identity and against those who may be viewed as a type of adversary.
The industry appears to be founded on the idea of all profits flowing to owners. It seems reasonable that the industry would generally reject alternative models with little thought.