I agree with the list except for melees. Out of all of them samurai fits the best for bad ping.

For Reaper, Enshroud is a nightmare on bad ping
Monks GCD speed is by far the fastest and even requires double weaving (rarely) where even good ping players cant do lmao.
Dragoon has too much animation lock still that would be more awkward for high ping players
Ninja has a fast GCD speed and requires double weaving in certain instances. You also have to do your mudras which could ghost on bad ping.

Samurai, on the other hand, has an optimal build at a GCD speed slower than ninjas that doesn't require any double weaving to stay optimal.