I can see this is all a bit too much for some to take on here. Firstly, we've spent the best part of the last two decades laughing at them, let them have a bit of fun and take it on the chin. If you can't cope with this then football probably isn't for you.
Secondly, with FOSUN and Mendes they've essentially won the lottery - pot luck, a combination of hitting rock bottom with the double relegation and having an owner willing to sell to anyone for peanuts. They've got billions in the bank and a huge pool of (very talented) players they can cherry pick as and when they want them. There's plenty been written about the way Mendes moves his "assets" around the top European leagues, Google it. If they're promoted Mendes will ship some bigger names in bankrolled by FOSUN to get round the FFP rules. Decent work if you can get it.
We should be used to this type of nonsense anyway, we've had to spend the last 35 years listening to stories of how our biggest rivals won the European Cup... bastards.