I am sad to see this interaction go. It was a very niche thing that required the interaction of three factions' tech, with arguably limited usefulness. The group I regularly play with has been aware of this interaction for the better part of a year, but I can count on one hand the number of times we've actually found a reason and the time/spare apm to use this tactic.
I can't understand how you all want to spent time debating a 'feature' of the game that you practically never use
I am concerned about this change because it fits in a larger pattern of changes that I feel are not good long-term for the health of the game.
One of the most enjoyable things about the original Supcom:FA was the way that the different factions have their own peculiarities, and the way that those interact with eachother. I've mentioned in several previous discussion that I am really not stoked seeing the balance team homogenize the factions and removing all of these gimmicks. Not all features of the game have to be used regularly to remain in game, as demonstrated by the continued existence of firebeetles.
... Should we really keep strange edge cases...
Yes.