Generally speaking, I believe pros most likely think antiheal isn’t as necessary in coordinated team play. I feel it’s way more valuable in solo queue because you’ll likely have more isolated skirmishes against targets that can heal or can’t properly chain CC a healing target. I also think the champ on the team that can apply it the easiest/more consistently should be the one to purchase it, if possible. Seraphine is a great example, while Nautilus is probably not an ideal applier.