And supposedly sometimes filling more than one bucket can be seen as a positive, but that can be increasingly hard to pull off the more selective the buckets might be. Like, being seen as a good enough prospect to fill the dancer-but-not-dance-major bucket may be a lot harder at some colleges than others, and so it might be harder to combine at those colleges.
Speaking of multifactor analysis, I have never understood most of these colleges to be uninterested in attracting prospective CS majors. But I do think they typically want their sort of other-bucket-filling person who is also a CS major. So conditional on being such a person, being interested in CS could well still be a plus sometimes, or at least neutral.
Which I assume is already raising red flags for CS kids who are maybe not so confident in filling one or more of those other buckets. But this is definitely not unique to them. Like, at these colleges at least, being an intended Classics major alone is also unlikely to work. You still need to address that bucket thing, because everyone does in one way or another.