Unfortunately the impact on the customer is just the opposite.
Customers generally want to deal with a capable and competent company. One in which there is a solid infrastructure to support the products and services they sell, and which is staffed by quality people who are committed to their jobs and competent at them.
The salesperson who tries to channel all communication through himself conveys to the customer that the company is so lacking in structure and personnel that they must rely on the salesperson to do everything. That doesn’t give the customer a warm and fuzzy feeling.
The best salespeople understand this, which is why they make it a practice to expand the customer relationship by bringing customers into their facility.
There, the customer can see with his own eyes what sort of organization the salesperson represents. He can see the inventory, view the production areas, examine the basic processes, meet the key customer service people, and chat with the management.
And all of that reduces the risk of his decisions to buy from you and makes him more comfortable with you and your company. That makes him more likely, not less likely, to buy from you.
It also results in him having personal relationships with key inside people, who then become the go-to people for most customer requests. That takes the burden off you -- the salesperson -- allowing you to spend your time selling, which is, of course, the idea.
That’s why it is one of the best practices of the best salespeople.