I see that the review on http://www.distrowatch.org/weekly.php?issue=20181126#haiku is discussed here.
I would not worry too much about things such as “got the idea that the window title bars are inefficient”. To me that is just a tiny detail IF it were true in the first place (which I don’t think it is but again, I think this is such a minor thing either way).
The by far much bigger issue is hardware support. This is an area where hopefully HaikuOS can improve a lot in the coming months, because if haiku does not work on the real hardware then it can not be called a “real” OS.
These reviews are a valuable input showing where we failed at that
That depends. I would not call a “window title bars are inefficient” a real failure, but hardware being not supported, while, say, it works under linux, is a problem. Since this may also require more information for Haiku, I suggest adding some simple means for the end users to give you guys feedback in a convenient way, ideally automatic. For example, “click this button to send a log to a remote page for hardware information and failure with that”. Of course people could enter information manually via their web browser but many are lazy (I know I am). The more information the easier it should be to support hardware, even more so if it already is known to work on linux (which may be easier to test for folks; there are actually quite some linux users out there in the wild; of course it is still only a small % share but it’s a very noticable number; quite a few windows users are actually dual-users of linux as well).
I think hardware support is more important than a perfect quick tour - if my hardware is not supported then the quick tour is not going to help me since I could not use HaikuOS to begin with. While I understand that you want to make a great first impression for casual users, do not forget the more advanced users.