$2 NLHE 6-max: Facing a River Raise w/Top Set after a Dangerous Card!

pokerstars, Hold'em No Limit - $0.01/$0.02 - 6 players
Hand delivered by Upswing Poker

UTG (Hero): $2.14 (107 bb)
MP: $2.00 (100 bb)(VPIP:20, PFR: 15, Hands: 63)
CO: $1.97 (99 bb)
BU: $3.97 (199 bb)
SB: $2.00 (100 bb)
BB: $2.06 (103 bb)

Pre-Flop: ($0.03) Hero is UTG with A♣ A♦
Hero raises to $0.06, MP calls $0.06, 1 fold, BTN calls $0.06, 2 players fold

I think, after this Call Villain can be with 22-TT,ATs-AQs, AJo-AQo, 89s-T9s, KTs+,QTs+, JTs+, KQo.

Flop: ($0.21) 2♦ 4♠ A♥ (3 players)
Hero bets $0.13, MP calls $0.13, BU folds

Here, I think He can call my CBet with All the Aces he holding, or Slowplaying 22 and 44.

Turn: ($0.47) K♠ (2 players)
Hero bets $0.30, MP calls $0.30

Here, I think he would have raised me with 22 or 44. Second spades make this board a little bit dangerous.

River: ($1.07) 9♠ (2 players)
Hero bets $0.77, MP raises to $1.51 (all-in), Hero calls $0.74

So, acording to my idea about his range, he arrives on this River w/ only AJo-AQo and ATs-AQs. The problem is that his Raise can´t represent AJo-AQo, leaving him with only ATs-AQs(made flushes). The question is
1: Do you disagree with my assumptions about his range through all the streets??
2: Do you Agree with my 3rd Barrel on the River??

You are literally only losing to flushes and 35
He would never have 35, and would raise his flushes, but would also raise 22, 44, A4, A2, A9 and maybe even complete air (since the river brings a "scary card"). I don't think he would always raise his sets on the turn. However, since you are posting the hand, i'm assuming he DID have a flush haha
Nonetheless, I agree completely with both your barrel and your call. It's definitely a good move, you just got unlucky.

I think he could have weaker suited aces as well.
A2s may choose to flat and play like this.

Would he bluff with AsQx or AsJx ? Very unlikely at this level as people don't like folding.

I would give a wider range on possible flushes like A2s, 65s apart from ATs-AJs