Because when deployed as we see the Ampules activate and spread the Pathogen killing outright or creating aggressive hybrid forms, then it attaches to microbes in the air and then settles in areas with substantial humidity, so the Pods and Motes within end up nearly everywhere.
So it's most likely a Neomorph's the outcome if the Pathogen's dispersed and seeing as that's what the Ampule design essentially does, I think I am correct in calling it the default outcome yes, you will also definitely end up with Abominations (Holloway and Fifield etcetera) with Trilobites and Deacons being much more rare.
I hope to see them in this but I'm doubting that possibility more by the day.