I'm not going to say anything about the culture other than the are extremely safety concious. On the front line that's what we are all concerned about. The product & company direction are all down to the office staff.
Over the years they have achieved a lot & should have been proud of what they did. Unfortunately they've taken so much cheese off of the pizza that it's no longer a pizza operationally & also the product is stale. Try opening a pizza shop selling only bare & stale pizza bases and your wont get far.
The product needs more toppings and maybe even a stuffed crust. Unfortunately it comes back to what I said about cost neutrality. Only when safety is compromised will they splash the cash. Otherwise they'll only invest to save money further down the line.
They also focused only on share price and little else. It was great as a shareholder but now it's all about the future.
They no longer have a significant low cost base and operate in to big airports so prices can only reduce so far. The product is cheap and bare bones. Norwegian do it better. Even Ryanair do it better. The easyJet boarding experience is grim & now only X amount of bags go onboard leading to queues at the gate tagging bags. The baggage system needs a refresh but it would be unfair to single easyJet out.