This agreement is most often used in transactions involving a purchase. Sometimes two parties will know that they want to do a business deal together, but they aren't ready to sign an actual agreement. For example, they may agree that one party will sell his or her business for a certain price, but they do not yet agree on who will take on certain liabilities of the business. The parties can sign this document to show each other a good faith intention to work out a deal. It can also help parties get on the same page as to what they expect from the purchase.
Also, her closing call to action sounds more like a threat. You want to leave the reader with an avenue for follow-up, but don't intimidate them into responding. After all, they're not obligated to respond. You want to make them want to reach out to you for more information or next steps.