This is also part of the enterprise startup system... an enterprise startup doesn't need to and probably shouldn't build a whole enterprise sales chain. They just need enough to get a handful of enterprise sales - enough to prove their value proposition is high enough that enterprises will put up with startup shortcomings in order to get that technology. Then, sell the company to a big player like IBM, Salesforce, Atlassian, etc, who just add it to their sales/support portfolio.