Have you never seen those window lickers in LFR foaming over their mouths after a wipe (in LFR lul)? It's a Mt. Everest-sized chunk of salt
Anyway, I doubt many people will bother with HC warfronts, since collecting pearls will yield 430 gear eventually, and M+ are spammable and far easier to organise. 425 ilvl from HC warfronts is low enough to discourage good players from joining (except during the first month, maybe), while being high enough to encourage your typical LFR dweller to try his/her hand there