Honestly the worst part about losing dodge roll was the fact I got a dodge roll buff mutation on one of the other DNA bits I'd slotted at the start of the same run.
The actual hack melee function range was fine, but even standing basically on top of a plug I couldn't knock it out.
Mostly the thing that bugged me about the Hailshard is that there was no obvious reason to why it damaged me upon exploding. No big fireball, no shockwave, no shower of shrapnel, just apparently arbitrary damage.
Speaking of lasers, the Prism excavator boss can bug out if it gets hit by a shock grenade. I managed to make it as far as that fight in my previous run but by the time I figured out that damaging it seems to have something to do with the plugs and towers, it ate a shock grenade and just stood in one place for the rest of the fight, spamming its lasers at me until I died.