Not sure if this is pending or not, but I find that the base Tinkers' endgame tools are just way too easy to acquire. All you really need is 3 diamonds and you basically already have Manyullin. I think metallurgy adds a lot more content and use for a smeltery than an early-game way of manufacturing metal blocks.
I think it was due to the large amount of blocks it adds, and everyone would have to have the item ID edited or something like that. But I heard this a while ago, so it might be a bit inaccurate. I would put mod requests here.
