Because of forum posts like this, which might deter "idiots like me" from buying from them, and maybe a few class actions... However, they are always welcome to fix their problems if they really want to...
Are they really that bad? I mean it sucks USA doesn't design/build too, but I just ordered my first two S9s. I assume most have a good experience or they would not stay in business. Plus, I have an S3 that claims to have 1100 days of activity clocked.