In our time of increasing environmental tragedy, yet with some hope springing that we shall be able to make changes en mass to redeem the future, some appeals to nature seem very valid and perhaps essential to culturally appreciating our technologically precarious situation. For instance that which is more natural is more sustainable to nature. Microplastics are less natural than sand. A possible caveat - electric cars are somewhat more sustainable than combustion. But the presence of caveats does not make the appeal a fallacy - if by fallacy we mean something with no merit for consideration.
Natural processes are studied - and need to be studied to be of use and be used sustainably. They are numerous, interconnected, complex, mature, essential to human life and all the life which humans value. The concept of biophilia itself appeals to nature.
Appeals to nature should simply not be listed as an inherently wrong pattern of thought, fair to rule out of bounds. That message is a bad, hopefully retreating ideological position.