I think there is some. For example, years back when The Way came out, if you chose to walk the French Route, it was because you were looking for the Hollywood version instead of people like myself, for whom that movie generated a call to walk that hasnt left me for seven years.
Now that REI is partnering with American Pilgrims On the Camino, there are loads of trekkers who are hearing this is an easy and cheap way to see Spain. (Heard in a class I attended in February) and very little about the religious aspect as a pilgrimage. Everyone has a right to walk. Personally I'm happy for the bucket listers to start in Sarria. They might be Americans with little leave of absence, people who might be Catholic and people who might just be hungering for something more. I've learned to be happy for anyone who has had the opportunity to walk, whatever their reasons. The current trend is for people to walk something other than the Frances because it's overcrowded. The thing is for me, I don't feel called to walk another route. I don't think this makes me better. I think it means I need to be practice the old phrase "To thine own self be true."