@mattpharr@jesta88@aeva I put this "everyone" in quotation as tongue-in-cheek suggestion that it's not really everyone, and it's not that obvious - because of the way we teach and practice it. :)
"Bilinear is free? Sure, I'll use it! Everyone uses it? It must be the right thing to do!"
Once it's not free (our motivation - filtering under a new compression format) and you see the different outcome, you are starting to question yourself and everything you know - "which way is correct?!" :)