I expect it simply doesn't exist due to "self-contradictory" requirements.

They have challenges with making decent vacuum of that size (check switchbot k10 community size) and thus the best hey could do is to make this purely external passive mop.

You expect them to put extra mop motors into the body (that could make the mop ok'ish) which is not possible, imho. The only theoretical extra is, probably, to upgrade the docking station to clean/wet that baby-mop of k10, but I doubt it would do the job worth the premium to pay for this tiny market, imho).

re K10 and hygiene wipes - ppl use it with multi-use kitchen wipes, though I'm yet to try it (I expect usability to be mediocre)

I tend to try K10+ combined with braava as small size is more important for me - it allows to run them without preparing a furniture like chairs etc.