In my opinion, it's just a reach to try and get the 6.5 Creedmoor crowd to buy M14s. I own a Garand chambered in 6.5 x 55 Swede, as well as many other CZ and Tikka bolt actions in that caliber, and I would grab my bolt rifle before the Garand any day of the week.
Just my 2 cents, but the advantage of the 6.5 series of calibers is that it lends more accuracy to the bolt rifle arena. Add semi-auto to the mix and you chase your tail trying to chase standards set by the bolt rifles. For what it's worth my Garand is not 100% reliable, and it was reworked from 30-06 by a very well versed gunsmith. I forsee reliability issues and problems with the 6.5 Creedmoor M14 right out of the gate.