If normal people don’t care then why did 100 ex-intel guys bother to write an article claiming it was Russian disinformation at the risk of influencing a nation

If normal people don’t care then why did 100 ex-intel guys bother to write an article claiming it was Russian disinformation at the risk of influencing a national election and ironically then actually influencing said election which they claimed was trying to be influenced by the Russkies?