Private equity firm wants to buy Red Lobster, but they don't have enough money. So to afford the sale, they make a deal to sell the land every Red Lobster sits on to a firm that will charge Red Lobster above-market rate rent to stay in business. This doesn't seem like it should be legal.
When the PE firm took over red lobster, it wasn't a thriving business. They made a gamble: if we sell the land, we can pay down the debt to reduce interest payments and restructure it into a profitable business.
It was always a risky proposition, but the alternative was probably slow decline. The PE firm lost their gamble and they suffered the losses for it.
If the PE firm sold the land to a landlord they owned at discount prices, then yea, that would be a conflict of interest but that isn't what happened.