The real crux is I'm simply not going to pay my carrier another $5-20 subscription for another client device.
What you choose to label as ignorance others might call "making the choice that suits my needs". I mean, I don't even have cable/satellite TV and I've seen a Samsung ad. I can't imagine your average consumer has no idea of other offerings.
Same thing will likely apply here too.
The 4 day battery life (closer to 3 in practice) just about sums its benefits over the Apple Watch. Less features and not as well made, less applications available, and stuck with Tizen. Not so great connectivity options either.
As for the condescending "they don't know about other brands", well, I've followed Tizen development since forever, with Rasterman involved in it et all.
The Gear S3 Frontier manages mobile connectivity and superior UX with a supposed 4. Day battery life