I would ask the question overrated compared to what?
I am flying GLA-BOM via DBX next week on EK and I'm really looking forward to it. I've only flown EK once but was very pleased with both the soft and the hard product in J. The 77w has a slightly worse hard product than the 380, but I found the staff to be better on the 77w and as the business cabin was smaller it just felt a bit more special.
I've also flown BA J recently, albeit only on and old 747 and the hard product was definitely a bit tired and dated.
For the flight I am on, even if EK was a little inferior, it's half the price of a non middle east airline, so definitely not overrated overall in my view.