Of course, Pop music involves poetry, much of it as basic as it comes. There certainly have been other eras with more poetic lyrics than what we’re seeing in the early 21st Century. Like... almost any other era.
Other than Love, the poems don’t get very deep. Only one song, Apologize by Timbaland/One Republic dealt with God or the existential:
I found God on the corner of First and Amistad
Where the West was all but won
All alone, smoking his last cigarette
I said, “Where you been?” He said, “Ask Anything.”
Where were you when everything was falling apart?
All my days were spent by the telephone that never rang
And all I needed was a call that never came
To the corner of First and Amistad