I kinda agree but kinda disagree. It is a cheap way to artificially increase difficulty. It feels like a way to make it harder without having to really add anything or put thought in. On the other hand, I think it does help it feel like your guardian is growing and getting more powerful. When we are able to reach that level the content becomes easier and it feels like growth. The problem is when it makes previous content that was difficult seem trivial. Crota is so much easier now. If he was 10% or 15% easier that would be one thing. But the gap is too large. Crota going from 18 hits to 12 makes the encounter almost easy. If it was 15 or something you would still feel stronger but wouldn't invalidate the difficulty of the fight. So i might not be a terrible idea, but it seems like it was implemented with too strong a curve. On the other hand, raid and other high level bosses always being difficult would be awesome as well. Maybe they will be changing the power scaling with the new way light works to compensate.