in the most recent round of GSL we see Zest "drone drilling" Solar to force open the Protoss's natural.
So with this in mind I wanted to pose a couple questions to the community
1) Do you think this is imbalanced? If so how?
2) If it is imbalanced, is this something that Protoss players may potentially learn to adapt over time? If so how?
3) If this is imbalanced and unable to be adapted do you think Protoss needs a "door" mechanic or that maps need to be changed accordingly? If you do think a "door" is needed, what would you propose?