Doesn't that fact make the release less certain than the last time they announced it?

I believe that features that were proposed/planned are now implemented, which makes it higher confidence but, of course, not certain.

I believed that the first time... now I want to believe it but I know they miss deadlines.

It's done when it's done (as an indie developer you can still say that).

This sentence does not inform my guess at all.

Hope it will come for Switch

I don’t think it will, unfortunately, a reporter at Gematsu pressed Blow about it and he just kept repeating that it would be out for the platforms announced. The Witness never came to Switch either.

Damn :’(

In all fairness Blow had to juggle a lot of projects during this time. His work on the Jai compiler and on the other games Thekla is working on was probably higher priority than finishing anniversary edition. Still, it's good to have something done. :)