Just checked. The reports that Retro Studios was a bad place of management came not from LinkedIn, but from GlassDoor, which are completely different sites in terms of reliability. I could probably make a GlassDoor account if I wanted, lie about Retro entirely, and it would never go down.
In fact, one of the reviews used for journalists to "report" on Retro's possible mismanagement even goes as far as to say that "half the team is expecting Nintendo to shut it down", even though the month after this was reported Nintendo confirmed that Retro was still hiring. How do those two ideas gel together? Now to be fair, that GlassDoor review came from May 14th, and the Retro hiring was reported on in August. But you have to assume that beyond the reporting, for those that were actually on the scene, the fate of the company couldn't have changed in such little time. Especially because they were probably hiring the entire time.
It sounds incredibly fishy.