They fear getting more orders than they can handle and, thus, disappointing people.
Not true. Ordinarily, they are frank. If they have a lot of work, they simply tell the customer sooner. If they do not have, they accept work. In this manner, the customer is more secure than if they ordered via a company. Plus, it is easier for a customer to control an independent writer with respect to revisions and that they can get faster response as compared to a company's writer.
P.S. An independent writer will always work hard to avoid losing a customer. On the contrary, a company writer does not always work hard to produce a high quality paper. In this context, they give work to unqualified writers--they employ them and source orders from a company. Undoubtedly, their work is not consistent and this has contributed to many customers preferring independent writers. Hence, stop lying simply because you want more people to order from your company--EssayShark.