Personally, I don't see the point of doing reviews of unfinished stuff, (let alone "Let's Play's" - what is there to LP?).
The fact that YOU don't see means only that YOU don't see it. There have been reviews on almost every early-access game so far (you think they will skip an RPG release, really?), not just in so-called "professional" gamejur media but on YT (popular - and I mean it - "youtube" reviewers; here is, for example, Angry Joe's state on
beta/alpha early access) as well. Game WILL be reviewed ("mmm, it could be better here") and WILL be judged (by public) by it's current state (despite all the logic) and as it happened before with others - the overall impression will stuck on that unfinished state.
-"What, Original Sin? Oh yeah, I saw that game, didn't really like it and it was buggy, may be I will try it one day. May be."
There is always another side of the coin and not very pretty one.
The only harmless way to release DOS as an early-access, in my opinion, will be releasing finished game without the schedules. So, basically what was mentioned before.
UPD:
I just saw Robcat's post - well, pretty much what I said.
