I think highlevels suffered enough in the last round due to the fact that it was impossible for them to get chadztext.
I don´t see a reason to benefit the low levels in strategus, is there actually one?
BTW: Possible exploit: A clan decides to retire all lvl 30s at the same time (Hypothetical, i know) and then go to EU5. Due to their number, they would be able to get long runs of multiplicators on the server and if they respec every time they reach lvl 15, they would be able to generate an enormous amount of strat benefits, especially considering troops.