[somic]

Not entirely true. IPO as a process exists to allow companies to raise money from the public, especially when private funding is not available. Overhead, requirements and legalities are a side effect, and if you have any money in a public market (like 401(k) in US), you absolutely want that. I do.

When private funding is available, IPO is not needed by definition. And since comp structures are set up with the expectation of IPO or exit, it's employees who are affected.

If you are negotiating an offer with a private company, you should attempt to price the risk of having to forfeit your stock comp. This risk has increased recently (that's what this story is about) but most people still under-negotiate it in their offers.