I don't have experience with console porting. Most of the gameplay logic should transfer easily, but there could definitely be issues with the graphics and networking.
So, largely, the limitations of PFE for consoles may be traced back to Game Maker's own porting foibles and, understandably, a lack of testing with console hardware? Is that a fair evaluation?
By the way, does Springroll have a business email? I would love to get in more direct contact to discuss the possibility of building out PFE further.