Weaknesses I see in NORAD are:
1. the lack of a long ranged infantry AT missile, which means towns aren't quite as scary for vehicles to approach (think MILAN, Konkurs etc). Eryx only has 1km range, even if it is wonderfully punchy.
2. Still no decent spec ops in the infantry tab. Deltas are kinda ok for a really close in brawl with their smg, but their LAW is practically a joke. At least with the machine gun standardisation now, they're not going to be humiliated by people with an l.mg3. Canada doesn't bring along spec ops in the infantry tab at all, and the Canadian Airborne are, in my opinion, not quite as good as the US Marines. SEALS, even if they are in the recon tab, remain awesome.
3. The Paladin is without a doubt the 2nd worst 10-second aimtime artillery in the game, only the MSTA-S is worse. very slow refire rate means you have to move after 2 shells fired or you're getting counter-arty'd. Caesar, AS-90, BKAN etc all make it look rather lacklustre.
Strengths you didn't mention are:
1. LEOPARD 1. Nothing comes close to the Leopard 1 as a low-mid price attacking tank. the Leopard C2 or C2 Mexas is exceedingly punchy and the Mexas doesn't even have the usual Leo 1 disadvantage of being relatively fragile. Sure, it's a bit less armoured than the M1IP at its' price point, but holy hell look at the difference in gun stats.
2. Centurion Marksman. Long range, accurate SPAAG, and it's even got a bit of frontal armour so it doesn't instapop when someone chucks a shell at it. Easily a better pick than the PIVADs, I'd say.
Otherwise, I'd still probably take Stingers over the Javelin. The extra range on the Jav is nice, but the [GUID] trait really isn't. Stingers have superior accuracy, and [F&F] makes them a much superior plane killer, as the missile doesn't lose lock if the plane moves out of the firing units' view range. The Accuracy also means it's a much superior ambush missile for surprising helis, as you're so much more likely to get the kills you're looking for before they back out of range.