I concur. A 30-06 with a heavy Nosler Partition may not be be suitable for a 600 yard shot on an elk or a brown bear, but it would be just fine at the distances most game is taken 25-200 yards. Unless they are delusional, 30-06 is accepted as plenty if not too much for a Georgia deer.My dad had a pre-1964 Winchester model 70 Lightweight in .30-06.
He considered it good for everything from woodchucks to black bear, although rather than take his gun into Canada, he borrowed a lever rifle in .35 Rem for that bear hunting trip.
I had a similar rifle, also in .30-06, a Weatherby Mark V.
I'd have hunted anything in North America with it, without reservation, within any distance I could Count on a good hit given my own skill limitations. (The gun was more accurate than I was).