It's exactly the reverse - just don't scale anything and we have no issues.
It's scaling (squish) that introduced many issues. Example issue: a piece of gear from a BC quest is better than a piece of gear from a WotLK instance, and I am not talking about some extreme pair, this happens all the effing time because the differences in stat budgets are so miniscule, thanks to the stupid squish. I can give twenty more examples from pre-max-level, many of them worse. The legacy power buff which helps in some places introduces issues of its own in other places, it's just fix on top of fix on top of fix and they all break something new, just slightly differently.
Things worked way better before the squish at least if we are talking about pre-max-level. They did the squish for the sole reason of running into the 32-bit limit. They are no longer subject to this limit, so let's stop breaking things for no reason. They should concentrate on not introducing too much of a power staircase at max-level. This is easily done with having resetting staircases (items that drop in raid X grow in power in that raid X, outside of that raid X they only grow up to a very limited ceiling, next raid starts where it wants to start and every raid goes as high as it wants to go, no issues, power multiplication reduced dramatically - a factor of 3-4x from what we have now easily).