No plans for Steam at the moment, it's just a fun hobby project for the time being. If it gets more serious maybe I'd consider it. I think disabling the collider entirely would be problematic because it would allow for the occasional headshot to not register due to collision being disabled. The collider would need to be disabled long enough for the dynamite to pass through, so it couldn't just be 0.00001f to make the odds of that bug extremely unlikely.
There probably is a solution that could be found with layering but the easiest method might just be to instantiate the dynamite slightly further in front of the player. Of course, there are already quite a few layers, etc. setup that ignore raycasts, etc.