Yep, I think it's bad advice. Going from Rio to Santiago the port side (left)will always be away from land. That's not what you want. When you get to the fjords in Chile (the most scenic portion of the cruise) you will want to see the spectacular glaciers and they are going to be on the Starboard side. We did the cruise in the opposite direction, Santiago to Rio and we had a port side balcony. That's where most of the scenery was.
Landlocked in Denver, but cruisin every chance we get.
Polynesia, Carib. '86
Cr. Odyssey, Scandinavia, '91, 30 Day S Pac. 2002
Crystal Harm, Aust., N.Z., '94
Royal Odyssey, AK,'96
Old Cr. Pr. Canal, '97
RCCL, Carib, 1998
Volendam, Car, 2000
Ryndam, 35 day S. Am., Antarctica, '03
Is. Pr., Canal, 2004
Statendam, 34 day China, Japan, AK '06
Cr.Pr., Carib. 08
Eurodam, Atlantic, Med. '10