Remember, all the burnable Fuels are supposed to have one aspect that makes them seemingly OP.
The Coal and Oil Shale underground give you so much Fuel from mining that that part could be OP, not to mention Oil Shale in a Coke Oven does give you regular Oil. Sure it will run out eventually and requires you to go waste your time mining it, but it is a damn good early Power Source.
Many Mods have Tree Farms, so Charcoal is quite normal too, so this Bamboo thing basically means the Mod has a “Tree Farm” that you can build with vanilla Stuff.
Oil and Natural Gas are also quite powerful and Infinite, same for Hot Spring Water and Lava, but once you reach the cap of their Output, suddenly you need to look for new sources of Power instead of upscaling your Tree Farm.