Can you provide some links to anything that supports that? Her antitrust philosophy is built on a hostility to business success as such so I don’t see why she would have any positive disposition to smaller businesses.
For a concrete reference regarding small business, see this recent speech of hers [1,2].
[1] https://www.ftc.gov/system/files/ftc_gov/pdf/remarks-chair-k... [2] https://www.ftc.gov/news-events/news/speeches/remarks-chair-...