I definitely felt like that early on too - it's like they took the concepts of shrines and korok seeds and, by having them offer the same level of reward, undermined the more challenging stuff. If a difficult bit of platforming offers the same reward as a single ground pound on a suspicious hillock, why put yourself through it? The obvious answer is fun, but I agree that, early on, the ratio of rewards to effort feels a little skewed.
But the more you play, the more you appreciate it. Just as korok seeds were rewards for exploring, so the easier moons are a pat on the back for being prepared to take your eye off the ball a bit while you're on your way to a bigger objective. And of course there's an element of them wanting everyone to be able to progress through the game if their platforming skills aren't up to scratch.
Things change a bit in the postgame too. By that point you're not seeing moons as individual things, but counting them by the dozen. In that context, every little helps.