Anyone complaining about poor practical effects or overuse of CGI needs to watch the making-of doc or the creature featurette.
While watching behind-the-scenes can disprove “overuse of CGI” complaint, it has zero relevance if someone complain about poor practical effects. If you complain about the final product being bad/poor then effort and time that was spent to make that final product is irrelevant. I am not saying I think there are poor practical effects. I am just correcting your misconception.