I'm fine with 8-man Alexander. Sometimes it's hard enough to get raids scheduled with 8 ppl because of job, family, etc.
Also I prefer 8-man raids because it's more familiar, you get to know your fellow raider better - if you aren't friends before.

And even if I get flamed for that: I raided in WoW with 20+ pll ... it was not fun (most of the time) - not because the content was hard, no, the hardest part was that all 20+ ppl showed up. In my opinion the hardest part of raiding shouldn't be the orginization and reliability of ppl.
I raid to have fun, not to wait if all ppl will make it.