If Sony acquired SE they'd get IPs like Final Fantasy (that includes the biggest MMO in the market), IP's that do well in Japan like Dragon Quest, story-driven IP's like Tomb Raider, they'd get Deus Ex, Life Is Strange, they have other businesses Sony is also a part of like manga / anime. It would also mean Sony would get 100% of all studios making marvel games as far as i know.
It's the perfect fit. And they could also do something about how mismanaged the old Eidos studios are.
Nothing dumb about this one, honestly.