Whyyyyyyyyy

Now given I am an older gamer and usually hard stuck plat (silver 1 currently) but I'm noticing a lot of cnd on the enemy team will counter my ult with their own. Which, I do understand means neither one of our teams can die (as long as they stay in the damn goo) but it's just a whole bunch of nothing for minimum ten seconds. I feel like I can always keep my team alive during an enemy cnd ult and then use my own to our advantage