As someone who reads scores of pitches a week from tech startups, I can't say how much I agree with this.

Most of the pitches I get these days force me to wade through swamps of buzzwords that have become absolutely meaningless. It's enough of a turn-off that I pretty much ignore those pitches -- I figure that if the company had something really exciting to tell me, they'd figure out a way to tell me so within a couple sentences without using endless strings of empty jargon.

In pitching (to journalists, or users, or potential employees), keep in mind the most basic rule of poetry: The fewer the words, the more powerful the statement. I.e., less is more.