Even if the decisions have taken longer, perhaps they've been better decisions? And even if the growth could be greater, they've been successful with specific types of users for specific, lasting reasons?

At other companies, "growth teams" have been given permission from the C-suite to overrule all other product teams. Sounds like at some companies the growth teams have even been given tacit permission to overrule the corporate counsel's office. These are certainly ways to speed decisions, increase growth, and attract a certain type of highly skilled and motivated employee -- and they may not necessarily be in the best long term interests of the company, all of its employees, and its customers.