Mostly because of broken expectation based on promises, which in turn being made withoiut any actual understanding or being outright lies. A month or two doesn't matter too much. What is matter is dev's inability to be adequate.I don't get people who get so emotional about release dates, it happenes when it happens. Broken promises is something to take a dev accountable for, not enough certainty to tell whether it's even the case. In the meantime though y'all don't have to act like you're blueballing yourself until the game releases. You can get off to other things in the meantime yk.
It is quite simple - if you dont know something - you can always say "I don't know".
If someone told him "your game will release at 12-00, 22nd of november", he could tell "x told me release is...", not "release is...". He choose to release it on steam not by himself, but with the help of seasoned publisher - and then SUDDENLY, project release got MISTERIOUSLY delayed. Again - sesoned publisher could expect the delay and could warn the dev. But either they choose not to, ot dev is lying. Either way there is too many wierd things happening simultaniously.
And for some reasons, patrons too did not recieve any game. Even if they recieved some heavy drm protectewd version - doesn't matter, because the release itself would be a proof of "it ok guys, just some technical issues with steam". Insted dev choose to lay some lame excuses, which only made things more suspicious.
Can we say he is a bad guy now? No, we don't have enough proof. But the things gets more wierd with every day passed and with evely lame excuse presented.