Seat allocation would hurt Easy. The reason everyone gets to check-in and the gate early is to get the seat they want. It works well, and should be kept the way it is.
These days it probably wouldn't.
In the old days those who turned up early got group A.
These days those who pay for speedy can smooch in late.
The majority who check in online all get A regardless of when they turn up.
And a few lost souls wander about with traditional boarding passes and looking a bit confused as to how they turned up early and ended up last in the queue.