I think rolling is totally fine, light armor should have faster/longer/cheaper dodges than heavier armors, otherwise, what is the point of it? But I do agree that epic light has a bit too much armor, I mean, it has around 45% damage reduction, which is a lot. Epic medium has 63% and heavy has 75%. I think a reduction down to 35-40% would be sensible for epic light armor, and heavy should get a tiny buff, like 2-5%. The game makes it sound like it is less than half as hard to cut through some good quality silk compared to magic-imbued full plate armor made out of f*cking starmetal and black ice, which is ridiculous as hell. And sure, we must suspense realism here a bit, because otherwise, everyone would be always using full plate armor, because that is simply unparalelled in terms of protection, and basically anyone who could get their hands on it historically, did and used it, and we want some more variety even in late-game. All I´m saying is, light is too damn good at protecting the wearer as it is compared to heavy, and it is also one of the reasons almost no one is using heavy atm, at least in PvP.
As for weapon balance, here´s my two cents:
Currently, spears can be countered quite well with axe+shield. And axe+shield can also ironically be very well countered by a spear. It now mostly boils down to gear and skill, as it should be. I would say spears are no longer overpowered, they are just still a good weapon for PvP, as well as they should be. Personally, I usually run axe+shield+spear and usually use axe+shield for PvE for max damage and protection, and in PvP it depends - if my opponent is too fast, defensive, cautious etc., I still poke him with the spear from the start, but if they are rather offensive and don´t play it too safe, I will usually first try to ease them up with axe+shield and only when they flee, do I finish the job with the spear. Daggers are also fairly viable I would say, although situationally and mostly for duels. Greatswords are definitely viable and have been either always, or for a long time now anyway.
I do take a bit of an issue with how little (or if at all?) they buffed the last 2 heavy attacks of the spear - they made it sound like the damage that gets subtracted from the first 2 hits which are mostly used in PvP and are sort of cheap shots, would get added to the last 2 hits to nerf spear for PvP, which was very much needed, but also not nerf it too much for PvE, because that was not really necessary. And they seem to have nerfed the former without buffing the latter, hence I now almost exclusively use other weapons for PvE, because the spear is quite meh dps-wise now, even if you do the full combo.