I see the logic in this. In fact I do pretty much the same myself with all leathers.I dont think it needs a SPA visit. I think you can minimize those stains and scuffs on the corners yourself. Grab a microfiber cloth, damp it lightly with water only and go over the bag GENTLY. The corners look like minor scuffs and if you have the guts to moisturize it with a mild leather conditioner, they will fade a little. I, like others have the guts to clean my own H bags. I NEVER had H or the SPA refuse service for any of my bags just because they were cleaned with water or mild conditioner. Ive been told by the leather experts at Madison in NYC that I can use H saddle soap on my Barenia and I did. Others make a big deal out of things here... if you're not confident or enjoy doing it yourself, stay away. H is strict at turning you away if the bag is dyed, painted and repaired outside H. Good luck, really nice bag and you live life once.
PS: SPA visit and turn around could take a year minimum.
However some members show that they have neither the initiative or inclination to sort things out for themselves and I would advise the proverb: a stitch in time, saves nine!