Well, taking too long is not a problem to me. Failing to deliver because of mismanagement is. This is off-topic, of course, but it struck me as odd when Space Venture changed game engines various times and couldn’t seem to pin down its technology or design approach. That can burn through a project’s budget very quickly.
Mr. Gilbert has a very impressive track record of managing development projects and Thimbleweed Park just benefited greatly from his hand. (Not to mention his design philosophy, technical talent, and creative prowess.)