They were tweaked to work on a different time scale.
The idea they can get some distance to avoid scrutiny.
In a lot of cases, the debtors are also the owners of the firm that initiated the leveraged buyout. They load the target up with debt, can't make the payments, and then they collect as debtors.
See Sears and their current CEO for exactly that model. It's been going on in retail for years. They're all getting boned hard though thanks to Amazon gutting brick-n-mortar retail. OOPS.
Of course the real people being screwed are the folks on main street.
My guess is that they come out ahead even after the bankruptcy. They would have put some of their own money in to purchase equity but my guess is, not more than fees would amount to after a decade.