Haha he linked to my live cast, and little did he know I also do
a series of casts using zoom out.
I don't use it for tourney games because it generates sync errors sometimes. Seriously I would publicise how to do it, but at the moment I've had about 10 completely wasted casts due to sync errors, and I've only done 16 casts so it's not a viable long term option, yet.
I've have raised this to Relic to allow greater zoom out, a bit further so you can see more in replays would be a great option.
In the mean time you can watch my strategic zoom cast series if you want to see further zoom
