I don't see a connection. First of all, practicing something over and over is really the only way to get it. In fencing, it may be a certain combination, like a beat in 4 with ballestra, feint in 6, lunge. In boxing, it might be a right cross, left cross, right uppercut. You got to practice. Period. What makes CMA and many asian arts unique is the forms. Forms are really just elongated combos. CMA adds internal TCM principles too, but for the sake of this argument, let's just look at the combos. Originality in battle is not really important - you can always think of original ways to lose. Spontaneity, perhaps, is what you mean, at least in the context of appropriate spontaneity (again, you can spontaneously lose). You don't want to be a predictable 'robot' but this can come from forms practice or combo practice, if you practice it like a robot. It's all a matter of how you practice, what your intention is.
Now with the demise of the Spanish school, I suppose you could draw an analogy to some forms practice, but I'd difer on the point that the Spanish school didn't advocate it as a health practice like CMA. Sure, all sports say that they make you healthier - fencing too, even back then. But the TCM angle of CMA allows for the existence of, say tai chi, as strictly a health practice. That's very unique, really. You don't see cardio-kickboxing or MMA being taught at old folks homes and senior centers. Also there was the technological change, the ability to make better swords. That really didn't affect CMA in the same way that it did fencing. So while you can make an analogy, I think it would be a faulty one.