Board Thread:Versus Debates/@comment-43403813-20191002153737/@comment-43403813-20191002165951

I can understand why you'd think that due to the positionings of the paths appearing different in each panel, however Deva was still behind Asura enough where using BT would have been affected, if obstruction was a factor. This proves that BT can still work even if there is an obstruction between the caster of BT and the target. Here is a manga panel for clarification.

https://imgur.com/Pe92lTG

In this case, Pain is using BT through his hand, which appears directly behind Asura, give or take a couple of inches.

Here's another manga panel where it does look like Deva is at the side of Asura, but when you take a look at where Kakashi is standing, Deva is still behind Asura in respect of that, it's just that the shadows throw you off a bit.

https://imgur.com/cqiHsrN