I've read the the same thing here and there, and always along the lines of "it degrades the sound" but with no specifics. I've just tested my Stomp with phantom power from my audio interface, and it sounded the same to me either way 🤷♂️. It also didn't explode, which was nice!
Depending on stage layout and who's providing the bass amp, I sometimes use a short TRS - XLR cable, and other times an Orchid Electronics DI box