I'd tend to agree NORCAL.
What's with the box at the top of that run of EMT?.
Could be my eyesight, but are there a few black wires coming down along-side the pipe?.
There's a lot to be said for removing the old junk that isn't needed anymore too.
In the second pic, next to that last PAR38 spot, is that object that looks like a box (up on the roof) anything to do with the electrics?.
I sort of get the feeling it's covering something electrical.
In the 4th pic, I bet that roofing material is going to love cutting into that flex over time.