Members of the military have an obligation to refuse illegal orders. I am neither in the military nor a lawyer, so I can’t go too deep on that.
I have no doubt this is his first step in ferreting out any military leadership who holds loyalty to the constitution over him personally. Whether this particular plan is blocked or not, it lets him clear out anyone who won't follow his orders without question going forward.
What's special is they're a republican, and there is dirt on them, which means they can be controlled. In a vacuum, nothing is special about Matt Gaetz. He's a goblin looking fratbro who by all accounts has a pretty annoying personality. His special power is having a father who is also a politician and a penchant for banging underage girls which his donors and peers can use to control his actions.