Even if your target audience is highly technical, they will appreciate it if you can simplify it. It underlines that you know your area well.
Unless your prospects understand your offering’s value in their business context, they will not be ready to buy it quickly.
Only if you understand how a sale happens you will capture the nuances of the business. Without that, you can’t market your business well.
If you help your customers understand how you are solving their end customer’s problem, you will elevate yourself in your customers’ eyes.
Persona helps you understand your target audience to a greater extent allowing you personalize communication to some extent. But for hyper-personalization, you will need to pick up more subtle details of the customer interactions.