I think we should stop adding new gimmick to the game as much as possible.
Berserk needed a buff as they didn’t stand out much over Vikings Champion. Now with Gambeson being removed, I think players will choose VG as multipurpose unit and will use Berserk against Infantry and maybe situationally against ranged units as VG is too expensive to use against ranged units.
At least be careful about adding new gimmicks to old UU’s. Both fighting on after death and axe throwing on a cooldown are cool on a Berserk unit, but as a change to a 27 year old Berserk unit? I like it, but you will ruin nostalgia for many.