What is the purpose of your comment? No one needs this. It must be to make you feel better? Don't make comments where the only point is to make yourself feel better. It adds no value.
Minecraft is a wildly collaborative game. You are constantly talking, sharing and problem solving together. They could even be in the same room. I find it very hard to imagine that's not bonding just because it's on a screen.
Do these apply to all computer games? I can imagine this being true for, say, FPSes or puzzle games, but collaboratively building with Minecraft seems like a different sort of thing.
Are there similar studies about whether playing Legos with your child creates a bond? What about baseball?