Nope, it had the perfect mix:
40% Platforming
40% Tactical shooting
20% Stealth
If it concentrated more on one area than it wouldn't be Uncharted and instead be your average and generic 3rd person game. The best thing about the game was the seamless mix of the 3. Platforming, stealth kills, then shooting whilst hanging from a high vantage point/using the environment as cover.