I passed through security yesterday about 5.15 pm. Priority lane. I was through in 2-3 minutes. No questions asked, my phone was in my carry on bag.
I was meeting a colleague and found him just inside the boarding pass gates. The queue stretched back to there. I feared he would not make our 7.00 pm flight. He joined me in the terminal in about 20 minutes, couldn't believe it. But well done yesterday.
I think one of the issues is the sheer unpredictability of security, it does seem to go from being fine to long delays. Since they know how many pax to expect, there must be other issues impacting here?