Maybe I can shed some light on this as someone who thought yoga was stupid until I gave it a fair shake and am now a fan. I used to think sorta like you in the sense that workouts were either cardio or lifting and there isn't much point in anything else. The thing is that yoga assuming you don't do "im a suburban mom who pretends I do yoga" type, but rather meaningful power yoga or w/e people want to call it is the best total package workout I've found. Yoga can be fantastic if you (like the OP) really push yourself and practice proper form throughout. I am a rock climber and I've found that the muscular control, stamina, and flexibility as well as strength that you get from yoga is a far more practical and useful form than just lifting alone. I still lift and for building strength alone lifting blows yoga out of the water, but often applying your strength is about more than raw contraction power. It's about all the little muscles and connections being tone and strong in a way you simply can't target with lifting alone. So for me yoga builds total body strength and really helps in all sorts of departments lifting doesn't really target, I didn't really get it until a much better rock climber than myself told me to give it an honest try (its hard to go in with an open mind and really commit to getting something out of it rather than being like "I look ridiculous, this is dumb") and I can say it has genuinely improved my climbing and overall performance in ways I didn't think possible.