Every company bigger than 10+ people is dysfunctional to some extent.
It's just that not all of them are lucky enough to have a former owner heroically try to save the employees from oppression by ruining their relationship with clients and getting them fired, trying to sabotage important product launches and getting people in shit with the management by leaking that they're preparing to quit.
I wholeheartedly applaud these valiant efforts to improve atmosphere at Obsidian and make it a better workplace for all.
Avellone's remarks would only have an Avellerse consequence on Obsidian's financial state if retards took MCA's complaints upon themselves to form some Gamergate-esque movement and boycot Obsidian by spreading awareness of the upper management's misdoings and not buying their games. Which isn't happening on Steam, on reddit, on 4chan or 8chan, on any kind of fansite, and save for some pulled pre-orders, not even here, considering we're too busy discussing the benefits of seizing the means of production and the journalistic integrity of Geoff Keighley.
For a game like PoE2, a good percentage of the buyers don't care about internal drama, there's a good percentage of fanboys who see Avellone's posts as a means to sabotage the success of their beloved PoE2 regardless of whether they believe what MCA says has any merit, there's a good percentage of people who won't buy this game because "lol SJW", and the rest don't care.
Best case scenario, news gets out about the upper mismanagement over at Obsidian through many outlets, Fearg and co. are put under the looking glass by their fellow employees/adoring fans/potential partners and investors doubting F&C's managerial abilities, and Feargus will genuinely try to improve his ability as a manager, at least until the heat dies down and things go back to as they used to be. This is of course unlikely to happen, because in the eyes of the press sneak fucks and against Infinitron's wishes, the Codex is seen as an untrustworthy site (for hearsay, rumors on any other site are completely believable of course) and thus not worth reporting about. Though I do believe some sites would be willing to host an official interview with MCA, provided MCA's reputation level with the Journalist faction hasn't dwindled to Vilified for posting here
too much at all.
Most entertaining case scenario, some Obsidian developers or Fearg himself try to defend themselves against MCA's accounts, causing the fire to rise high for everyone to see, prompting several protest leaves against the ongoing mismanagement, internal drama to reach its apex, and the eventual splintering of Obsidian into several smaller studios with less hierarchical management.
Worst case scenario, eventual boycots after a media sensation on this topic cut deep into Obsidian's pockets, prompting more layoffs and downsizing until a skeleton crew remains, but Fearg & Co. remain in charge.
Most likely case scenario, nothing of serious consequence happens, but the Codex at least gets its fair share of lulz and drama on top of MCA becoming a regular Codexer.