Microsoft could buy Sony and SE the next day, what's your point? lol
This, and the fact that SE is bloated and only has few skillful people left. SE would be a terrible buy, if it weren’t for their legacy IPs, which SE continues to milk and dilute (FF origins lol).
Nothing SE revealed in the last 15 years touches the quality, polish or ambition of FromSoftware or even Capcom games, they’re just not a good third party developer period.