It's not bad advice per se. 
What's happened is, Samourai got caught in the middle of a fight against Ordinals - Ordinals exploit the protocol to be able to inject higher size TXs. Whirlpool does something similar, in the name of privacy (for its coinjoin implementation). That's the difference, and right now I personally feel the rest is mainly noise. Excited to see how it develops for all fronts to hopefully improve and evolve.