Wrong. If you read carefully, it said (and I believe it's true) that the datasheet will not sell the product. Also true, it will actually be more likely to lose customers because some detail doesn't match the customer's goals.
For products above $100K, having a sales person who can actually listen to what the customer wants, and tailor their pitch appropriately, is worth millions. No "useless, overpaid sales staff".
Of course, your mileage varies greatly in sales :-)
I would have thought a customer not purchasing the product because it doesn't meet their requirements (or some part of their requirements) is a net win. If the OP was correct that his technical specifications were exhaustive and accurate, a prospective purchaser would be in a good position to make the purchasing decision.
Are we now encouraging sales through obfuscation and sales-person trickery?
For products above $100K, having a sales person who can actually listen to what the customer wants, and tailor their pitch appropriately, is worth millions. No "useless, overpaid sales staff".
Of course, your mileage varies greatly in sales :-)