If they are looking at allocated seating now and find it doesnt impact OTP, it begs the question why was it done that way in the first place? Was it simply one persons belief that it would be better?
easyJet management can be very arrogant & blinkered IMHO, they beleive that their way is the best way so why change? Also a company they once bought, Go-Fly used (very successfuly) allocated seating, so they could'nt be seen to adopt a proceedure of the company that they had just bought! Even if it clearly worked, was popular witht pax and was superior!
They'll get there eventually probably