In the wiki using self-destruct is described as an alternative way to use mobile bomb units. The use of this mode here is not a reasonable workaround to the problem described above because of the time taken to self-destruct. Getting Imps already up to the target unit is a challenge enough, let alone pressing self-destruct at exactly the right moment such that by the time they reach the target they will detonate together.
Still seems to me that selecting a bunch and ordering an attack from that bunch should not result in just one exploding on the target and stunning the rest.
Still seems to me that selecting a bunch and ordering an attack from that bunch should not result in just one exploding on the target and stunning the rest.