Yes, but spending 300m is irrational, and if you’re irrational what’s another couple million to buy the club?
Saudis spent 300 mil for Newcastle and have already spent 200-300 mil on transfers. Now they are in the top 4 of EPL, while they were near relegation when Saudis bought them. Doesn't seem too irrational!
Saudis could have also bought a bigger club for 1-2 billion. But no one likes to overpay by a big amount like the 500 mil extra bonus Redbird agreed to on top of the 1.2 billion.
400 mil by Investcorp would probably be over 2 seasons. Still much better than 35 mil net mercato, Milan did last summer. And Redshit had signed the purchase agreement before the summer. It just by chance those stingy fuckers waited till 2 days after mercato ends to close it!

