I thought it was a fantastic episode.
The show is so popular (whether liked or despised) that it is studied in fine detail. How did they get such a good shot here when they were doing this, that scene looked scripted etc etc.
When they've done basically the same thing to death many times now, it is almost impossibly hard to make everything look spontaneous and yet still somehow get a camera to capture it perfectly with the high production standards the team constantly output. There will always be a tradeoff.
For me, the bar has been raised again ever so slightly over the polar trip. They've now ticked off most of the continents and therefore will have to engineer ever more unbelievable situations just to maintain the same standard. I don't know how much longer they can keep it up, but I'll keep watching whilst they try.