The guy you were quoting was saying that grinding AP to 54 that quickly was unhealthy gameplay and you replied by saying that it's easy to get to 54 with a "casual" 14 hours of grinding AP a week for a month on top of raid time.
I don't have a problem with the Artifact weapon being what it is and rewarding people who grind it out but people with jobs/study/lives can't really be expected to get to 54 that quickly.
The reality is if you aren't bleeding edge you don't actually need 54 traits if your raiders are skilled enough and by the time you hit Mythic Krosus/Elisande/Gul'dan in a couple of months your Artifact weapon will be up there.