A lot of classes are quite shit tbh, mg seems strong, DL is obviously strong as always, sm probably strong. Slayer dmg is cut by half of what it's suppose to be (also demolish doesnt work).
/edit
also I dont' think they did progressive scaling testing, just on maxed out characters, so you'd need more data on that
all in all I dont think you should tweak default game design and formulas, they were made for a reason