The HD units will be back in 2018 and with improvements. If anything, the SD units will undergo overhauls to be more like the HD units. As for "not caring," it's all in we're you're looking from I guess.
And just for the record, I consider the Polygon review bad form. It's really not reflective of what it actually is. Hopefully next time they'll have a different reviewer on the product.
That sounds promising. I think I'm still going to pick up the Atari and Sega HD units. I'm not a perfectionist, so hopefully they will be solid units.