Do you have data? If you do, let's see it. So far you haven't even offered anecdote, just your personal opinion presented as if it's self-evident truth.
I work in informatics, and it just doesn't match what I see in real life, particularly in healthcare.
That said, I could see one possible way that the statistics could be skewed, and it wouldn't be lying: 99.7 percent of U.S. employer firms are classified as "Small Business". From the same document published by the Small Business Association:
"...In 2011, there were 28.2 million small businesses, and 17,700 firms with 500 employees or more. Over three-quarters of small businesses were nonemployers; this number has trended up over the past decade, while employers have been relatively flat..."
There are statistics, and damned statistics. If you look at a "business" of a single person (of which there are a huge amount) and it counts the same as a business that employs 5000 people, then, yes...it is somehow posslble.
If this is what they mean, it is wildly misleading, but...perhaps not "untruthful".