pretty tough to do that without teammates that will coordinate. Maybe that’s just how all MOBAs are,

That’s all hero shooters in casual mode for you. Wait until competitive mode appears and the game starts to get big in esports as well. Sure in lower ranks even in competitive nobody cares about their healers, but at that time you should have enough experience and skill to play on a bit higher ranks than low, and its will be better teamplay (hopefully).