Of course... but in the end there is still the question of whether a particular means of "striking" with a sword will actually cut effectively and do so without damaging the blade. The answer to that question doesn't care much about who is doing it. Just how. And it's quite reproducible. You know, physics and all that.
I agree that actual cutting ability (and taking care of the blade) are essential no matter the style or performer. I also think it's important that the cutting technique works well in a martial engagement (this is also reproducible) as opposed to just proper target cutting. There's a lot to consider wrt the original topic, hence the different approaches including the use of swords for tanren or for aikido technical study as has been mentioned before.