It is. The author even released last month a side-story for patreon that has been voted a while ago and a new character sprite teaser.
Thing is, the author living in Georgia (country, not state) which is in political turmoil since summer, as specified in his lastest dev note, he didn't have always the state of mind to work on the VN thoses past months.
As of now, he said he wanted to release a larger build than usual to compensate, but it take time too.
Just be patient with him. Rather wait for a well written build at his own pace than push him at time when his heart was not into it.