Here's a little blast from the past that showed up in my recommended recently that is a good example. It's Pippa & Lisa talking about their respective management at PC & Tsunderia. Lisa says management are all so nice, comfy atmosphere, and she loves it there fr fr. Tsunderia would later implode with talents going on rants (full on breakdowns in some cases) about how completely dysfunctional management and company internals were afterwards. Oops?
We might have a more complete view of how the industry works here thanks to board culture, but we're still viewers who only see the tip of the iceberg in regards to what talents think and how things are going down. Often times not even that much as talents will lie or obfuscate the truth either on orders or for their own reasons to keep the peace (ie I'm sure Urara/Dizzy was very nice, but that doesn't mean the rest of Tsunderia was).
I don't have the full timeline but tsunderia pretty much shit the bed after dizzy fucked off after being the one basically running the company or at least doing most of the lifting. Not saying the girls wouldn't lie to keep the peace but at this time maybe tsunderia was what lisa was saying it was. One can never truly know how good or shit the corpo is until a talent stops giving a fuck and rants and even then you can't take everything at face value. If you were to ask rushia about cover she'd have some shit to say about them that I'd say is either false or blown out of proportion, like being "bullied" by a senpai that can't fucking talk to people.
I think a decent measurement of how a corpo is doing internally is how many talents have left or were fired. Holo might have it's faults but the number of people gone in holo is what? 4? compared to how many nijis?