I messaged in the high mmr midwars EU and NA discords. Consensus is yes. I didn't receive any no's, actually.
The most feedback I got is there should be 1 on each side 100%.
Without 2, it can be used as a boring way of preventing comebacks. Eg. push wave, farm ancients. Will take 20 minutes to get a big enough advantage to end. 20 boring minutes.
Without 2, whichever side has the advantage to ancients will be favoured (this one is more obvious)
An interesting feedback I got was to move zorgath further more into the corner to prevent it being used to reliably backdoor (and