I would say that's probably accurate for typical buddy pairings, but not for a properly trained and equipped team. In most cases, at least. A team of self reliant divers capable of doing the dive on their own but working together with a team mentality is going to be safer than going it alone most of the time.
That’s the key: “self reliant” and “capable of doing the dive on their own”. Meaning solo equipped and trained (or at least the solo approach and mind frame).