Discs are already a structure that has no knockback, but upon hitting another structure they do still cause that structure to not accept at least most modifiers for a short time. Additionally, upon hitting a player, they can (generally, as far as I know) completely stop that player's momentum. Due to the speed that discs are able to be spammed and/or the distance they can quickly cover (and, debatably, the ease this can be done), they can cause, perhaps, oddly high amounts of disruption for such a light/fast/low damage structure just by impacting into something or someone (in addition to ungrounding structures with explode).

At the risk of breaking deadstop tech, if structure and player hitstun/hitstop was removed from discs, discs could be made into a light chip damage, explode carrier, and movement option that otherwise doesn't have this high innate disruption potential. This lack of innate disruption seems to me like it might be a consistent extension of discs lacking knockback.

If this change was implemented, perhaps it might remove some of the pain points that some players have with discs and alleviate some of the frustration in dealing with discs being spammed at them. Thank you for your consideration. ^_^