I find something else sad but I rarely feel the need to share my feelings here: It is the advice that is given by people who have already walked x Caminos to people who have walked zero Caminos and who start in SJPP.
I understand that frequent Camino walkers regard locations merely as interchangeable staging posts - if they can't find a bed here then they just walk to there, it does not matter to them, Roncesvalles or Burguete or Espinal or Zubiri, it is all the same to them. I have learnt to understand that, on Camino, what matters to me a lot, does not matter to others one bit. So be it and I am not trying to impose my views on others but I wish that others would do the same. Suffice it to say that I, too, do not regard the "never book mantra" as particularly liberating no matter how many times it is posted here.
Roncesvalles is a special place for more than one reason but I'll only address the logistics aspect. At certain times of the year, the albergue is full and dozens if not hundreds of first time walkers have to walk on, or if they are physically not able which is likely if they have not yet walked 1000s of Camino kilometers in earlier times and are simply not able to walk more than 24-26 km a day they will be put on a taxi to Pamplona or to elsewhere by the hospitaleros. That is by now a well-known fact. So, with respect to Roncesvalles and to first time Camino walkers: What on earth is so liberating if they don't book an albergue bed for their first night on Camino? Roncesvalles is the place they want to stay and where it is reasonable for them to stay. It is not sad - it is just silly and thoughtless to tell them not to book a bed at one of the hotels or at the albergue of Roncesvalles.