Not just because of that, many other reasons, including the place being packed all the time, very uncomfortable to move around. On our last visit when we did use the Lounge. I went out to the shop and there were people sitting on stairs, on the floor anywhere they could sit, as all the seats were full. Huge queues at restaurants.
I went through Manchester Airport going out, with sandals on, no problem, coming back I had the same sandals. I told I should have removed them. I explained I had worn them a couple weeks ago at Manchester and. I was not stopped also wore them at Dalaman, the woman did not believe me. Took me to one side x-rayed my sandals and then explained she had to do a full search, patted me down really well going inside my clothes and then took swabs of my hands. Phil was fuming and this woman was a jobs worth, who hated me aguing that I had worn the sandals before with no problem.
I would never return to that airport.