The feature dump is talking about what the product is, how it works, and how it compares with the competition, but not what it will do for the customer. Salespeople jump into a monologue, talking ad nauseam about all the features, often boring the customer to tears. Believe it or not, customers simply don't care about most of that stuff. The conversation with your potential customers often lacks the critical connection between your product, service, or company and their needs. Customers need to know how you can help improve their efficiencies or their margins, or help them become more competitive. More often than not salespeople are selling what they need to sell, instead of selling what their customers need to buy.
http://topsalesman.blogspot.ru/2008/10/avoid-feature-dump.ht...

Соответственно:

Слишком много пространных, но, увы, бесполезных «лекций» от людей, рассказывающих ХХ о том, что могло бы пойти на пользу ее бизнесу.

Как-нибудь так, имхо.