It seems to be a case of SE not doing too well with sales. And don't forget their developer side which I wouldn't exactly call reliable. The FF franchise has been in a bit of a slump and XIII wasn't exactly hailed as a classic. FFXIV though was a complete disaster, a very, very expensive disaster that's still going.
Their publishing side has brought out some quality titles. Tomb Raider being the latest. The market rewarded them for their good decisions, like Deus Ex and Tomb Raider. I'm not sure if Sleeping Dogs broke even, because their marketing was so terrible but then again that same lack of marketing may have saved them a ton of cash. Other issues could be down to taking on too much at once.
Hopefully, new management will double down on good decisions and stop failures like FFXIV.