msander9as a tech, i know that pulling the brakes on the fks make them kinda wonky, and ill only pull for about ~5mm. id say go with a different binding TBH.
This happens if you try to bend them without securing the horizontal portion of the brake arm, it just bends the arrangement under the pedal and in the base plate as it's just shitty pressed steel.
If you grab the arm after the 90 degree bend with some vicegrips and hold it really secure while you bend the arm with a snapped ski pole or similar you can achieve a pretty huge bend without making the brake all floppy - I used 115mm brakes (the larger ones didn't exist yet) on my 132mm Hellbents, no issues.
Ideal method is to completely disassemble and bend them in a vice but that's not always practical.