Melee and spell damage from pet minions summoned by items (e.g., Barov Peasant Caller, Defender of the Timbermaw, Arcanite Dragonling, etc.) is not displayed with SCTD the way it was with the default blizzard scrolling damage.
There's no way for SCTD to know those pets are yours. They are not treated the same as pet class pets. Not really anything that can be done about this.