Valve, please, bring back Dota VR Hub. There are not many of us, but it would be a good touch, especially for watching DPC matches. Anyway it was only optional to download,
Dota 2 in VR! - Spectator Experience - YouTube
Dota 2 VR Hub is the Future of Watching eSports - VRScout
DOTA 2 VR HUB OMG Full 3D Showcase HTC Vive - YouTube
This super-cool DOTA 2 VR demo video has me believing - CNET
Video: What Dota 2's VR Spectator Mode Looks Like! | Rock Paper Shotgun
DotA 2 VR: a First Person Walkthrough
Valve's Dota VR HUB is incredible. Take a peek at what it can do | News | joinDOTA.com
Dota 2 releases full VR spectator suite—just in time for the International | Ars Technica
Valve Adds VR Spectator Mode to 'DOTA 2' International Championships
Dota VR Hub has been removed from the game : r/DotaPatches
Dota 2 adds full-featured VR spectator hub for blockbuster International 2016 tourney | PCWorld
Spectating Dota 2 in VR is amazing, watch it in action - Polygon