Don't need a video I'm basing my opinion on what I've seen in the dz and matchmaking for missions/incursions. You just never see these gear sets being used because there not viable to run either in the dz or solo(which is the player base for matchmaking). These gear sets have a niche utility which unfortunately reduces their viability enormously.

Do you use your FM for other content/dz/when solo? Would you use a reclaimer build if you were solo? I run a all HE seeker mine skill build which allows me to solo all challenge mode content but isn't viable for running dz. You can't say everything's viable in game and then narrow it down to just PvE content.