It really isn't.
Suicide Squad was a profitable film. That is a factual statement.
Speculating/arguing about a potential sequel's financial performance is, just that, speculation. And that's a thing we could do (but until it's even in production that feels like a fairly pointless thing to do), but that doesn't mean that you can argue about the facts of the first film being a profitable one in and of its own.
That statement doesn't exist in a vaccuum. That's not how you analyze box office. At least not how you do it properly, in my opinion. I second the nuanced Deadline's analysis of Squad.