The other argument is that Torvald removes the need for laz, for his damage-boosting utility…over lapping utility might be detrimental to team comp.
As well laz if in a different/opposite position to the monster and that directional difference can negate any benefit to the damage dealer if say, the monster is only facing them (dmg dealer), until they’re down, or fleeing…and is only marked in a way that they can be hit from behind.
As well the utility in having a damage buff that doesn’t risk giving away the position of the medic, thats also something.
In general the burst of the ability and the short up time doesnt really matter because the damage dealer is the one who’d use it in the first place, with the side benefit being that other classes could opt to use it.
However other classes using damage buffs isn’t optimal as they have other utility to focus on, and the timing would be hard to optimize anyway.
in terms of predicting damage and blocking it, I guess the argument is, that evasion does the same thing, but is more subtle, and therefore less likely to draw aggro…but yes, not exactly 1:1 and there are differences in the way they block damage