I didn't downvote, but:
- Presumably the people inside the company has tried for years to pressure for a change. When that doesn't work, and especially once a big layoff happens, it's understandable that employees vent their frustration in public. And that might be what it takes for outside people (investors etc) to make necessary changes at the top. It's not about backstabbing.
If these employees didn't care at all about the fate of the company, they would just take the severance package and move to other jobs without saying much. The complaining you hear is most likely from people that _care_ about SoundCloud.
- You're saying that the business model is broken, because you "can't do business with music labels". YouTube is evidence that it _is_ possible, it's just tremendously difficult.
You need advanced algorithms to detect copyright ownership, you need a system to do revenue sharing, you need people to handle complain cases etc etc.
The reason why they failed has to do with poor strategy and execution, and less to do with the business model.
(This reminds be of all the people that said Apple could never get into the cell phone business because dealing with the operators would be impossible. Or that web search was a broken business model back then Yahoo-like portals were all the rage and web search truly sucked.)