nonononononononono
no.
firstly - fixing game balance with nerfing is dumb. the less powerful things should be made more powerful so that classes over time become cooler and not duller.
also pretty much all op points are way off imo - archers are slightly underpowered, cav and to a smaller extent throwing are a bit over.
I don't think we need nerfs or buffs to fix these really, however.
tl;dr no.