Yes. The strategy changes depending on what kind of team you are. A good team might want to u-turn another good team to try to get them out of the race before all the fodder is gone. It might not work, but it might. If it works, one less good team to try to beat in the final legs. If it doesn't work, fodder is going to fodder.
For not so great teams like Chris and Brett (they had a good leg this episode because they lucked into a task they were good at and it was short), then targeting another not so great team is the way to go. That will help you to live another day and you might be able to stumble your way to the final 3 and maybe you get lucky on tasks or taxis. So, Chris and Brett probably don't want to say that out loud to the group, but if they are logical, that's what they are thinking.
Likewise, Colin and Christie were right to choose one of the not so great teams because they were already facing a u-turn. They don't want to have to go against another good team should they win the u-turn vote. They have to know they would be targets and get a few more votes for the same reason they got yielded in a previous race - they are serious threats. Note that every other TAR team voted for them except Tyler and Corey who didn't need to vote for them because they had already had enough votes to be assured of getting a u-turn.
Tyler and Corey went after another strong team which were weakened by a speed bump and the start of an argument. Throw in a u-turn and that argument at the speed bump would have gone to another level and team meltdown. The fell to pieces when they thought they might be the target of a u-turn in the last leg. If C&B had have known how the leg would play out (where they weren't racing for last), they would have been better off following T&C's vote and getting rid of a good team and keeping a not so great team to beat on the next leg. But, they didn't have the benefit of 20/20, so they were better off hobbling one of the not so great teams to assure they made it to the next leg.