Sweet Baby Murphy on a pogo stick.
Who cares?
Pepsi or Coke?
Chevy or Ford?
ATI vs nVidia?
Chocolate vs Vanilla?
iPhone or Android?
Play in the type of league you prefer. There is no need to evangelize or proselytize to others, and try to to convert them to your league type.
You may like cheese-burgers better then spaghetti, I may like the opposite. Nobody should care about this. I could be in multiple types of leagues. In fact I am. Some PPR, some standard, some 0.5 PPR, some IDP only. (Used to play in 2QB.)
Anybody who seriously cares what leagues other people play in, need to recognize that if someone else chooses a different type of league, it doesn't reflect negatively on them, or their choice, their choice isn't incorrect. It's a flipping preference.
Just because I've made a choice, I don't need to convert other people to it, others can choose differently then me, if anything we should be celebrating a diverse choice of leagues, as having all leagues being flavor X or flavor Y would frankly be boring.
I enjoy having different formats, it makes for different types of puzzles or Rubik's cubes to solve.
It shouldn't be EITHER/OR.... go for both, or the one you prefer. Call me bi-format, I don't understand why people care what leagues other people play in.
/END RANT.