Really,
First off, are you sure it's factoring? If so how do you know?
Please provide a link to this "FACT".
Secondly, if it is factoring, there is a big advantage to it especially for EXPH. An LOC would create more debt for the company. By using factoring they will be getting access to the money for invoices much faster and they won't have to waste time and resources collecting as that is done by the bank.
As time goes on and the financial situation changes they would have the option to either completely end factoring or even to choose which accounts they wish to utilize factoring on and which they don't. There won't be any debt to pay off.
It also means that they will be building the company from work that is already produced on not on the if come.
IMO, a much better strategy.