Is portaling in the air a bad strategy?

What I mean specifically is using Strange’s portal to get back to point but instead of positioning it on the ground you position it in the air to take the enemy team by surprise. My friend thinks this is a horrible strategy because it’s “predictable” and cuts off your team from being able to go back to spawn quickly if needed, among other things. I personally think it’s great because of its unpredictably and the fact if your team plays it right you can wipe the supports first then the rest of the team.