We know McCabe said in a closed door interview, that the FISA warrants wouldn’t have happened without the dossier. We don’t know what else he said in that session. Nunes has hinted about releasing that full interview. It’s possible McCabe spilled his guts. Director Wray has only viewed the Nunes memo, not the closed-door interview...and he dumped McCabe after viewing the memo last Sunday.
No, he saw something in the IG report that made him take action, not the memo.