[Audiosurfer]

I don't think constant switching is a good idea in any metagame really, since you're usually just giving momentum away to your opponent. That's not to say switching is bad in Doubles, (far from it, I find myself switching different mons in and out a lot in order to better take a hit) however, in the log you provided, many times you would've been much better served simply using Protect to block the damage. It would've wasted TR turns without forcing you to take damage as well as letting all of your mons keep more HP by not being forced to constantly take hits for each other. Also, it means that if you had a mon out with a bad matchup with an opponent's mon, you could eliminate the opposing mon with your partner while shielding the first mon from damage for the whole turn (examples of where it could've been used in your replay was when Abomasnow was killed off by Mach Punch. If you had Protected, then Abomasnow wouldn't have died to that and Manaphy would've killed both Pokemon off with a Blizzard). Once that threat is eliminated, you wouldn't have a need to switch out the initial mon anymore, which means something wouldn't have to risk taking unnecessary damage. Also, it means that your mon's partner can avoid being hit by spread moves that damage all Pokemon on the field (Surf, Earthquake, Lava Plume, etc.) so you can use these without fear of hurting your partner.
Tl;dr switching's great, constant switching isn't (especially with spread moves everywhere, meaning both partners might end up taking damage and weakening your team for a fast sweeper to rampage through later.)