From more critical pov, seeing many non-lewd and lewd games in forms of early access these videos actually prove NOTHING that they have playable demo. It LOOKS like playable, but until we have build it is not yet as those may be only sections/precise variations working etc. It looks good, but it may as well be Technobrake lvl jank working well on a full moon.
I really want this game to be good and released as everything so far screams that it might be good, but until we have dates, playable build etc. I would not hold it against devs that they don't release anything playable, because if they would have, something would most likely be already released.
Edit: On a first non-professional glance it looks like RPGM with million variables due to many costumes, changes and such - that is VERY EASY to be unstable (look/remember earlier builds of Karryn's Prison). Again I have belief, but holding my horses in stables and hyped