Hey Podd.
1- Depends on what you want from Storm Touched. If you just want the AS, then at 2/12 you have an average AS of 5/2 = 2,5% per level, while at 6/12 you have 7/6 = 1,17% and at 12/12 you have 10/12 = 0,83%. This means you can remove 4 points losing only 2% AS (disregarding all other bonuses, ofc).
That said, unless you want the 7% AS from Storm Touched, I would make Savagery 16/16. You gain one charge level, more % weapon damage, flat bleeding and more % bleeding damage, that helps your Blade Arc.
NOTE: If you decide to keep the same build you have, I suggest going 3/12 Squad and 9/12 Storm Touched instead, since is literally better (same physical damage and AS, but higher electrocute and lightning damage).
2- I would leave them at 1/12 each if I were you. Chances are that when you reach lvl 75 you will have at least +1/2 to Soldier skills, pumping their chance to 12/15%, which is good enough.
There’s not enough incentive to pump them beyond 20%, so just leave them at 1/12 and enjoy the extra 8 skill points, and let your gear take care of the proc chance.
3- Your devotion is broken, but it can be fixed by removing the bugged Hawk point and adding it to blue Crossroad, since you need 4 Blues for the Boar.
A more offensive approach can be achieved by going with these devotions. Basically you lose Tortoise and Dryad to get Scales, Eel and Lion. All in all I think your devotions are pretty good, I’m just not really fan of Tortoise and Dryad.
NOTE: Grim Dawn Build Editor is better for devotion planning, since it’s a simulation. Hell, it’s all around better than grim calc, only downside is that you must copy to grim calc if you wanna link it.
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I would go with this build. Hope any of this helps, and have fun!