I'm not sure how much benefit players will get from having an increase in a virtue that they already heavily invested in.
and I don't see it giving hybrid loadouts a meaningful buff regardless of how often you cast the ability, repeatedly casting an ability to buff weapons damage is not the kind of gameplay loop Soulframe needs more of, we already have other pacts for that.
Ultimately it pushes builds towards a singular virtue investment instead of a bit of diversity.
With weapons having attunement caps, the buff is meaningless as some players will already have invested all the points needed in the virtue their weapons need.
And i personally don't think that using the ability simply to reach a weapon's full damage capability every now and then is a valid playstyle.