Yeah, I figured that out fairly early on. Although they did a very good job, IMO of laying the ground work for the 2 red herrings.
I enjoyed the series, it was a teen supernatural drama, shades of CW/WB (Buffy, Vampire Diaries). These show runners (Miller and Gough) created Smallville so I'm not surprised that this is more Buffy than Stranger Things.
I enjoyed the cast and characters, I honestly don't think there was a character I hated or didn't work.