Earlier quoted context omitted.
It's a distinction without a difference. They invested effort - time and money - into marketing activities. Whether or not those efforts were outsourced is immaterial.
There is a difference. You are lumping many aspects of starting a business into the marketing category. Identifying a market? That's one of the first things you do when you start a company. It's finding a group of people to market a product to. If that's marketing, then almost all aspects of a business are marketing.
Those dimensions of starting a business that we now take for granted - from identifying a market to branding and visual design of the packaging and other consumer-facing materials - come to us by way of the discipline of marketing management.