The difference is that Metalica has the actual sales to back up their feat.

Metalica's 2016 album did significantly better in sales than THINFS, and didn't drop off the charts 1 week later. It sold 291,000 copies first week, but still went on to sell 4 million albums - which is definitely nowhere near the case for Bon Jovi - they didn't even get to a quarter of that.