Sarah737, read Walder's post above. This is how most of us reason, I hope!
We are not here to show off who can achieve the "stable approach" criteria closest to the limit. We are here to fly safe and economical approaches (in that order!!) day after day, month after month and year after year. This is what we as commercial pilots are paid to do.
As for the case in question here - Why did the IB crew receive a landing clearance before departing traffic was airborne? Why did they not question this clearance as they could see the 757 on the runway and knew (or maybe they didn't realize?!) that their GS/IAS was relatively high? I'm thinking that they were "hot" and working hard, but too late, to slow down the aircraft and "save" the approach. In doing so they were mentally only focused on landing and a go around was never an option. Could be wrong of course, just going with what I have read so far....
CP