Well I cannot really argue with most design alterations.
A dome shield and active movement, can be like having two walls of defence. Trying to chase through it can be a hasstle. But half shell exists so its not bad... but to have two domes on hand.... with no cd gap idk.... thats a lot of cover.
All I think about with fortify is that there is no harming or utility barriers in the game.
If a slow of sorts was applied to targets who walk though it, then barik would have some dive protection vs foes who just dash through the barrier.
By that design you could just walk upto people with a slow by deploying your shield on them and that seems like a pretty jank use for it, thus why I do not oft talk about the idea.
Another idea for shield utility, fortify amps ally damage passing through it. Therefore you can have your shield wall to amp whatever is stacked behind, allies or turrets.
I had a thought that tink could pierce through up to 1 additional target at the expense of dealing less damage after it penetrates the initial target.
Weapon attack penetration could be beneficial to apply caut, and hold a corridor vs stacking and make up for a lack of caut application from slugs.
Personally I hate weapon attack talents in their current state esp tink.