That and the EGS seem to be where Epic funneled all their profits from the height of Fornite. That neither has worked out puts them on shakier ground. How many billions of dollars has been spent on EGS with it being way behind their revenue targets?

As things stand, Epic has very little in the way of a next big revenue source when Fortnite starts to fade as something new takes its place. That (probably) isn't right around the corner but it will happen eventually. Their bet was on running major digital storefronts; that hasn't worked out. UE will continue to make good money but not anywhere near enough to sustain the company as it is. UE is simply far smaller than something like FN.

This is likely them realizing this in conjunction with what you said. They need a new big revenue source in the pipeline, since digital storefronts won't be it. Whatever that next thing is will need lots of money.