Hell yeah he’s walling; he’s blatantly scanning from the very first moment. And not only that, he’s got some kind of shitty bot (it doesn’t assist aiming much — outside occasional
Murloc-style twitches:-P — but he makes several lightning-fast turns towards the next enemy (for a good one, see around 3:55, where he turns nearly 180° to end up aiming at some dude behind several walls, with pinpoint accuracy). After 2:00 mark, his bot really kicks in and he continues more botter- than waller-style.
Just doing my work;-)