True. With essentially a three-man bench, there just aren't enough players to get the platoon advantage throughout a game. I haven't read Gleeman's Athletic article about platoons, but he summarized it by saying that managers platoon because it gets results. Left handed hitters seem to have more dramatic splits and the Twins have three younger players who hit left handed and have superior hitting skills, but less defensive chops. If they were better defenders than their right handed (or switch hitting) counterparts, maybe the manager wouldn't pull them in the middle innings. It's important to get the lead when you get a chance and having the platoon advantage might make Kyle Farmer a better choice to hit than Edouard Julien, but IMHO it kills to have Farmer batting in the next game situation against a right handed high leverage reliever.
Rocco Baldelli's job is to win games. I think more than most, he looks at the bigger picture of the year with his resting of players and pitcher usage. To me, it's a blind spot in not giving Julien, Kirilloff and Wallner more chances against same-handed pitching. I'd love to see one, two or all three guys graduate to full-time status where they are in the lineup more than half the time against left handed starters and I hope Rocco gives them that chance.