Never had one, but I don't see any reason you couldn't get a 6.5 creed to shoot extremely well. Getting any cartridge to shoot is the same process for any cartridge, good components, properly put together, and load development with quality components. I've seen some of the most off the wall weird or antiquated cartridges shoot extremely small groups, anything is possibly. Hell, I took 5th out of maybe 15 one match shooting an old crappy Mosin Nagant with a UK-59 machine gun barrel in a practice 300-600 yard f-class match. Had to try it at least once!
In my opinion, the hate from the 6.5 cm stems from people with very little to no experience going out and buying a rifle, a box of ammo, shooting decent groups and touting the amazing ability to shoot relatively small groups compared to what they are use to which may vary. There are more and more people wanting to be "tactical" shooters, and the community hypes up certain components. Before all these new cartridges came out, everyone needed to shoot a 308 win, because historically, it was a sniper round, and that means it was superior. The manufacturers sales hype definitely did its job. There are several other cartridges out there that have been around for years and have been proven competition winners, 6.5x47 to name one. The gap the Creed filled was mainstream availability of factory rifles and ammunition. Mission accomplished for Hornady.
Many folks that have been shooting for years and have tried several cartridges along with high end rifles and components have been through the gamet of making rifles shoot and not buying everything off the shelf in search of superior accuracy. I think this is the crowd that gets frustrated with the other crowd that thinks you can just buy a nice shooting rifle and not have to work at it. While true in some cases, not all and everyone has different accuracy standards.
Not everyone reloads ether, so buying ammo off the shelf for a lot of people is a factor. I don't see 6.5x47 very often if ever on the shelf. Granted I'm not looking hard.
What has helped all of this is the availability of better off the shelf rifles, ammo, scopes, ect...... you can buy a 1/2 MOA rifle today, whereas 20-30 years ago, there were no guarantees like this.
I wouldn't discourage anyone from thinking one way or the other. Eventually if they enjoy it, they will all fall into the rabbit hole. We need all the participants possible especially in these times. This new group of shooters have ignited a fairly large industry expansion in the shooting world, so imo, its a good thing all around. I can see the frustrations though.
I currently shoot 15 different cartridges, some more than others, and I'm building myself a full blown PRS rig to give it a shot, but it won't be a creed.
Rotting dead horse beaten!