My instinct is that because gift wrapping has no real function beyond cosmetic roleplay, having gift wrapped bombs would just gradually eliminate all benign use of them until the standard proactive counterplay was just to trash all gifts by default.
I think there would need to be some gameplay sweetener for using wrapping/packaging to avoid that outcome if they're made trappable. Being able to buy one time use polymer shipping boxes, or being able to wrap multiple objects together (as builders can) would be a huge QoL feature and would almost certainly keep that kind of thing in regular use with players even if it's sometimes a bomb.