And [it] was right to be impeached

“It was a very troubling event. The moment, it was an insurrection, an attempt to overturn a free and fair election and to prevent the peaceful transfer of power. And it [sic] was right to be impeached.”

Mark Esper, former US Secretary of Defence.

(NYT.)

What does "[sic]" exactly mean in the context above? Does it emphasise ungrammaticality of the last sentence?