I'm roughly where you are faith wise and am blessed that my church is also...
... and I still quit my worship team!
Theologically or practically speaking there's nothing wrong with a given form of service being for a "season". To everything, turn, turn, turn, etc....
The fact that you and your church are drifting apart probably indicates that unless there's some divine reason to stick around and be a change agent it may be time to move on.
One question to consider, if there was a social justice group or study at your church you could participate in at your church would you stick around?