Don't forget packaging for short actions (maybe not important for everyone) and standardization of dimensions. Being a modern cartridge it isn't saddled with the dimensional variations in chambering/throating that some older cartridges are, 7mm08 vs 7x57 being another prime example of the situation.
I see the 6.5 Creedmoor as providing easy access to a widely useful level of ballistics and precision. That there may be a legion of asshats spouting BS about its mystical powers won't put me off of it.
I knew you would deliver a sensible and all telling reply Professor ; ]
