I have an Esbit stove and various forms of fuels tablets for it. My fuel came with a lot of warnings on the package that itīs toxic and irritating. The stove came with instructions that it should be used only in well ventilated areas. A tent will most certainly not meet this. I think thatīs a fair amount of warnings for a person that is allowed to play with fire.
It sure is true that one should be aware of the potential risks in handling this substance. But please donīt for more regulation on that topic.
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If it isnīt broken, it doesnīt have enough features yet.