It is nonsense and he didn't say that.

He said that losing the stock _they bought that day_ wouldn't hurt them. The purchases in question

• Rocky Wiggins, SVP and chief information officer, acquired 1,248 shares, spending USD7,188.48;
• Edward M. Christie, president and CEO, acquired 2,252 shares, spending USD12,971.52;
• Matthew Klein, EVP and CCO, acquired 3,277 shares, spending USD18,875.52;
• Scott Haralson, EVP and chief financial officer, acquired 1,011 shares, spending USD5,828.36;
• John A. Bendoraitis, EVP and chief operating officer, acquired 2,821 shares, spending USD13,138.56;
• Kevin Blake Vanier, VP finance and strategy, acquired 1,058 shares, spending USD6,094.08;
• Brian J. McMenamy, VP and chief accounting officer, acquired 131 shares, spending USD745.56; and
• Thomas C. Canfield, SVP general counsel and secretary, acquired 967 shares, spending USD5,569.92.

I got this from an article with the headline "c-levels-at-uss-spirit-airlines-go-on-stock-shopping-spree"

It looks like a token investment ($70K between 8 execs) meant to generate rosy headlines. It doesn't shout confidence in a turnaround / buy the dip.