Oddly enough you can bonemeal sugar canes in the bedrock edition but not in java, so I'm totally with you on that one. I'd be down for vines and cactus as well but I'm not sure about netherwart since it's not really a plant, maybe something like blaze powder could be used to accelerate it's growth.
This is a thing I do want and on occasion use in mods but usually I end up coming to the conclusion that bonemeal is good for early/mid game for food and that if I'm busy doing other things the Sugar Cane, Cactus and Nether Wart will grow enough to the point where I have enough and never need to use it again or in the case of Nether Wart never use it as I don't make Potions.
But I'm also one of those people that doesn't make Iron, Gold, Sugar cane, etc. farms and am fine with mining/using mods or never using certain resources and moving on to those I will use.
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