I've found that any resource relying on any romaji after the first chapter or two is often a complete waste of time. It slows down beginners needing to make the hard jump, since romaji is never used except for signs in real life, and it just becomes a distraction to the material for anyone who is not a complete beginner. Furigana is helpful to the intermediate learner, romaji just becomes harder to read at that point…
I’ve explicitly addressed this in the article. Cmd+F for a section called “why romaji is actually good” and then “why romaji is actually bad”. You may disagree with the approach, but I outlined my reasons for choosing it (as well as its downsides).
It is always a crutch for the first year student or the barely passed second year student that never helps with real Japanese.
Writing out romaji in Japan is likely to confuse more than help someone else understand.