What the .30-06 light mags and High energy's do is move the .30-06 up to .300 winmag FACTORY levels. The comparison in guns and ammo was good for the 165gr trophybonded in .30-06 vs the Win failsafe 165gr in .300WM because they have nearly the same ballistic co-eff.
However the .30-06 165gr SST-LM has a MUCH better ballistic Co-eff. and comparing it to the Win failsafe 165gr .300 is not a fair comparison because Yes the .30-06 SST-LM round whips the .300WM failsafe's butt. If you compare the factory .300win 165 SST to the .30-06 165gr SST-LM then you see that although the .30-06 still beats it, it is not by very much.

ALso something else to consider, those Light magnum and High enery factory loads for the .30-06 are very VERY close to the upper limit of what the cartridge can handle IE you won't get much if any better hand loading, and the .300 win mag can be handloaded to damn near .300 weatherby performance. which the .30-06 will never do.

That being said I do love my .30-06, it's my favorite