This is still a major problem.
When i chrono from 90 down to 80, my multiattack goes from 500, down to 167, and my DPS mod, (the source of my reforged stats, some is left over) goes from 107.2 down to 55.4
Like i said this is a massive problem for people that chrono/mentor down regularly. It will litterally cut your DPS by 70% or more, just by dropping 10 levels.