^Granted. It makes sense to use CGI if it's a safety consideration. It's just the idea of doing it for purely aesthetic reasons that I have an issue with. Too many filmmakers (very, very much including Zack Snyder) are too much in love with CGI as a toy to play with, overusing it for purposes that are better served by practical effects. We're even seeing a backlash now as filmmakers like Christopher Nolan, and J.J. Abrams on Star Wars, insist on using practical sets and effects as much as possible. I guess we'll have to see which way Ayer falls -- although I wouldn't really expect a Suicide Squad movie to be a CGI extravaganza, since one would think it'd be smaller-scale than a Superman movie.
Why attack Snyder? Peter Jackson, James Cameron and even Raimi's Spider-Man movie contain far more CGI than any of Snyder movies. And really it's not like anybody is really cutting back on CGI. Oddly enough any comic based movie must contain some major threat and do so takes some major effects work. Really only the last Inidiana Jones movie was light on CGI and effects in general but nobody seemed to notice all that much.