If I had the time, I would.
It really is the most ridiculous excuse, "I just can't get around to it". It doesn't matter how many other exams you have to do, if you wanted a CPL, you'd make the time to do it.
At the moment you certainly aren't sitting on the fence - You've clearly supported the PPLs-should-be-instructors position, so stop kidding yourself and stand up for that, if that's what you believe.
Results count, not excuses.