Every single guild stucked in normal fails at the very basics of raiding. Logs are there for everyone to see. Clearing normal don't ask for superb reflex or strategies. Only for basic rotations, movement and use of CDs, with margin for quite a few of errors. Stupid, as you call them, is something very different of ignorant. Normal raiding is something that anyone clearing Super Mario World can do. A 10 year old boy can, a 60 year old man can They just need to learn 20 buttons instead of 2.
The logic, if you still don't see it, is: a) put the means to teach the basics (additional content, it won't be too extensive, truth be told) b) People clears normal effortessly (even more additional content). Ta-chan.
Yes, you are still going to say that people are stupid. Don't be so subjective.