The question about which concepts you should use and why (and the arguments supporting them) might be a decent philosophical one.

"Too much baggage" isn't particularly well defined, though, nor is it a strong argument to say that some people relate consciousness to spirit or soul (some people also use terms like "momentum" or "norm" in imprecise ways but it doesn't keep practitioners for whom those terms have precise well-defined meanings from deploying them effectively).

"we should use different concepts... All are concrete and well defined"

Or perhaps we should use concepts from clockwork engineering or mill machinery. Very concrete and well defined.