That's why the statement was accompanied by the caveat that growth is exponential IF NOT CONSTRAINED...
Yes, true. But the "constraints" were laughable, as they are right now, as we speak.
Right now, restaurants and shopping centers are closed. Restaurants, which had been half-empty anyway, with all the government measures followed, tables set at a distance, disinfectant on the table, waiters and entering and leaving patrons with masks. Shopping centers, where you'd have a few people at any given time inside a store, and quickly passing by each other between stores. All wearing masks. Those were closed. But everything else is working. Offices, companies, factories. Public transport. Supermarkets. Huge supermarkets, like Lidl (equivalent to Costco in the US), working, forming huge lines where people would stand for 10-15 minutes in close proximity. Those have been open. Such a restraint.