Your claim that this content is just used to kill time leads me to say I think you're neglecting the people the content is designed for, players who are level 5x, 6x and 7x.

No amount of potency adjusting will take away the severe disadvantage non-level 80 characters will face by simply not having access to skills. Imagine being a level 50 Scholar and all you have is Physick, Succor Adloquium and Lustrate and your counterpart has all this, plus the full fairy set, excogitation, indomitability, Seraph etc

For sure, we could just unlock the entire skillset for new players in these instances, but why should new players be forced into running before they can walk?

You will have the next 2 years where content to satisfy your requirements of level 80 gameplay will be added