Exile can teleport out of roots, but when you teleport to a location that is too close (e.g. nearby wall, or the ground) while rooted, it will break the root and reset the cooldown on teleport because it's 'too close' to teleport to.
That being said, I hope this doesn't get fixed in the manner that Exile can no longer teleport out of root, but rather it just can't aim at the ground to get unrooted.
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