I was really impressed by the first episode, and I also loved the second one. Saulnier did a fantastic job, and I hope the other two directors can keep up the quality. (Okay, I'm mainly worried about Pizzolatto as director.) No matter what, I'll watch and, I'm sure, love all of this.
But the similarities to season one are too obvious and numerous to ignore, and I think there might be a reason for that beyond what I posted above. I think they're possibly leading up to a reveal that this is the same universe as season one. (You'll notice the Ozarks are literally right next to Louisiana...)
If I'm wrong, I'll just enjoy some damn good writing, acting, cinematography, sets, etc. because the season so far is great. But my suspicion is they need to pull out the big guns to save this series, and a direct connection to season one would be the biggest caliber they could use. I won't be shocked if we get a previous season cameo, even if it's only a secondary character.
But would a season one callback smell like desperation? Yeah, very likely... unless they do it exactly right so S3 stands on its own while adding to the first's appeal, not diluting it. Personally, I think they can do it. They proved they're making something great already. But I won't say I'm not nervous.