NB23 I don't think Thomas is trying to be an evangelist for Rodinal. What I believe Thomas is saying is that you can do very good work with Rodinal and showing examples to back up that claim.
Two thoughts.
First, how much we develop our film is a choice we make, or it might be a mistake that we make. Under development is not a characteristic of Rodinal.
Second, yes TMY is a great film; DD-X, Xtol, and D-76 are very good developers. None of these though, are magic bullets capable of doubling the quality of our photography overnight. Each of these developers brings to the table certain qualities, just like RolloPyro, HC-110, and Rodinal do. If we know their qualities, by experience, then we can pick and choose which of those qualities is most important for any given project; much like we might choose broccoli over asparagus for dinner. Personally I've been working with RolloPyro lately and it's quickly displacing the DD-X that I've been using. So far It is producing prints that I like better. Sure the FP4 and Delta 400 I have used so far seem to do better with a bit more exposure now than they needed with DD-X, but that speed loss isn't enough to make or break a shot.