The video isn't about that, it's about making harder hitting skills take more skill to pull off, not make things easy, but at the same time give noobs a entry level skill that works up until a point to stay competitive but to be fully effective they would have to learn more complex skills.
They've already got that: It's a buff called 'Bolster'. It makes a newb's skills VERY potent the less skills they have. It increases the ammount of damage each skill does to make up for the lack of available skills and talent points. It provides a less substantial buff the higher level the toon.