That really is concerning, I hope Hoshiineko is okay. An understandable reason delay the kickstarter - Good luck finding an artist who can fill in the role, it may be tough but there are lots of talented folks out there!
Viewing post in Delay to Kickstarter Launch comments
I'm in discussions with a promising candidate right now, but before moving forward with the KS, we're waiting for her to complete a test commission of content from the game. That way in addition to getting a sense for what she's like to work with in practice, we can also calibrate deadline expectations around the pace of completion.