That's right, it's going away on September 20, 2017.
They say that it's because not many folks are using it, though it's the ONLY one I use. I have a very sneaking suspicion that this is a Google decision. Thanks a bunch.
https://productforums.google.com/forum/#!topic/youtube/dx5xKn6v6rM A) What do you think about it
B) Do you know of other, perhaps better video editors freely available on the web? There are some popping up which are free, but I am suspicious that "free" just means for a limited time only, or free when you give up some info of yours, such as e-mail address.