No, the first block in the fork needed to be > 1MB. But it also changed the format, so they dropped all pending transactions from the mempool. ViaBTC did mine the first bcash block, but it was rejected because it was too small!
Someone had to figure out the problem and stuff a block so it could make progress.
The first BCC fork block was mined at 8:12:41 PM, almost 5 hours later.
The 2nd one was mined at 8:33:06 PM, 20 minutes later.
And then an other one not 5 minutes later.
Meanwhile the difficulty remained constant at 860221984436.2223
Clearly there's been a sudden surge in the hash rate.