but he didn't see an improvement he seen a decline hence why he lets it be up to the individualI understand that if you have a good PC and if your pack runs at 150 FPS without fastcraft, you will not notice much of a difference with fastcraft but... even when I have good PC and see my FPS going from 150 FPS to 300 FPS I cant ignore that it does help! Specially when its proved that 1.7.10 as some very big performance issues that were addressed in 1.8 and fastcraft just implements the same improvements with, as far as I know, no side effects! The mod creater was even careful to not authorize the distribution in packs until he was sure that the mod would not cause unwanted behaviours.
And even if you dont see an improvement in performace, its seen by most of players that play minecraft and if its going to help many players that doesnt have so good pc's, then maybe it should be in the pack, since not all people playing minecraft have a good 'PC kung-fu' and will not know how to manually add the mod... And if it caused performance issues to someone... if 1% has issues is it a reason to deny benefits to the other 99%? Plenty of mods also cause issues to some players but they are still in packs.
Also... Jaded reasons.... lets just say that sometimes she is wrong, but she will never accept that... like she never accepted that AG needed a little fix on ExU recipes to allow transfer nodes and make the pack playable, specially on servers. Server admins didnt forgot the huge issues that happened with clogged pipes!