Groups break up because they never got across what they wanted to do personally, and they have creative differences, and egos start to clash.
Actually, if I could deliberately sit down and write a pop hit, all my songs would be pop hits! Let's put it this way. I play what I like to hear. And sometimes I like to hear something poppy, and sometimes I don't.
I've worked in television long enough to know that when you stop enjoying that type of thing you go home and do something else.