Hell yeah!
Old stories die hard and the 458 has been damned since its introduction.

Actually 2100+ fps is not that hard to achieve these days with 500 gn bullets in 23-24" barrels.

I used a 458 for a while back in the 90's and ran 500 Hornady's and Woodleighs at 2120 with no sign of excess pressure.
Plenty of 458 owners get over 2100 on the chronograph with their 500 gn reloads.
This puts the 458 well and truely in the same class as the 450 to 470 Nitro Express cartridges.