I was there. From where I was (middle of balcony), I could see one person who eventually checked their phone. Not sure how long s/he spent on it since my eyes stayed focused at the stage almost the whole time.
The crowd cheered around one hundred times through the concert. Even sitting, I felt people were really enjoying the show. I don't think the band would feel differently.
Myself, I had high expectations for the concert, first time seeing DT. Not disappointed at all! Great playing, incredible night, amazing energy. Astonishing.