Yes,it depends on your time frame, and Ed doesn't have too much to spare if destination is goal so forget the "romance", and skilsaw is correct to highlight this
However I think it's an option for consideration for walkers / pilgrims who use public transport to get to Roncavelles, whether they are starting or finishing their Camino.
Leaving Roncavelles the walk up through the woods is a good test for your wits as you are travelling in opposite direction and as you climb you keep looking back to see if markers are visible for your descent next morning, although the path is there you must be observant. Assuming the weather is favourable and you get to St. J de P you don't feel under pressure next morning to walk back down this Napolean route through the woods, you can always veer right if conditions are not suitable for walk through woods.
All going well you should cover the ground to Logrono within the week.
Buen Camino.