Hornady has great marketing skills when introducing rounds that overlap several other rounds already in existence and convincing people they are new and needed.
6.5CM did this w. 6.5 Grendel, 6.5x47L .260 Rem, 6.5x55 Sweed, 6.5x57 Mauser, and a ton of other lesser used SAAMI and wildcats.
6.5 PRC will do this with the 6.5-.284 Norma, 6.5RM, 6.5SAUM (GAP 4S), 6.5SS, 6.5WSM, .264WM, 6.5-300 Weatherby, 26 Nosler and several other great SAAMI and wildcats.
All with crappy brass to start with while everyone else waits to see if it will catch on.
I am all for new cartridges. Especially if they fill a niche. Variety is the spice of life. People just need to weigh their options before they jump in with both feet.