No. In fact, I'm probably more in balance than I've ever been.
Full ROM Squats hit rear chain and quads. Moving between back, overhead, and front squats shifts the emphasis around and prevents dominant postures or muscle groups. And, most of Oly lifting is rear chain dominant, particularly the snatch. So we get posterior-dominant and quad-dominant movements both in generous portions, often in the same workout, often in the same lift (consider a clean and jerk a deadlift, a front squat, and a push press).
Mix in a few sprints, box jumps, and a healthy side dose of tire flipping, sled pushing, strongman goofin' and you're probably more well-rounded doing what I'm doing vs. anything else I can think of.