No one is forcing you. However, if you want to raid at bleeding edge level, you are expected to make sacrifices for the guild.
Raiding the same boss model on normal difficulty 10-30 times for gear is one of those.
Even if Alex Savage came out 2 weeks before normal mode, you would still be required to raid Alex normal to fill corresponding item slots to progress on Alex savage 3 and 4.
And Alex normal not dropping gear is a douche thing to ask for and it's not going to happen.