Another issue is the lack of a way obtaining Mossy Cobblestone, Mossy Stone Brick, and Cracked Stone Brick except in extremely limited quantities. Mossy Brick and Cracked Brick are even further limited than Mossy Cobble.
Mossy cobblestone has been a badge of honor for honest Survival players, and in a way it remains as valueable as diamond in terms of aesthetics. Coat your floor with mossy cobble and you can claim you have conquered.
The ore spawning system needs to be totally overhauled.
Coal shouldn't spawn near the top layer. It should only stat spawning at layer 35-40, and then the deeper you go from there the more common. Charcoal exists for a reason.
Iron should only generate between like layers 25-40(allowing you to make specific types of mines)
Gold should generate closer to the surface, it's useless, so why make us go down so deep for it?
Diamond should spawn layers 24 and below, and every level will have a better chance, but no more then 2 diamonds per chunk(Yes, I do know how big chunks are, but doing this will make diamond feel valuable again)
Redstone honestly needs to generate higher up, it is used for 1 thing.
With that system, mining will be easier, but not make ores overly common. You can make specific types of mines, which is fun.
Gold is useless and redstone is used for 1 thing? Maybe just for your play style.