I feel you on the flight characteristics...but I think this is simply a missile.
The article does not make it clear but it sounds like it is guided to it’s target by a user. The article says “with the help of an onboard computer” but that could mean anything.
This sounds like a missile...not like a “conventional” cruise missile that is pretargeted and uses terrain mapping or GPS to hit it’s target.
I dunno, the article does not spell it out.
You need to have a general idea of where your target is when the missile is fired but the missile contains its own seeker head and can acquire and hit moving ships on its own.
The Indonesian military is spectacularly corrupt, ill-trained, and incompetent.
I’ve seen various articles on them fantasizing about a variety of advanced weaponry but I suspect it’s a pipe dream - they don’t have the infrastructure to master this stuff, and if they do buy it it’s money that would have better been spent on training.
Err,GPS & terrain contour mapping are one of the several means of guiding a cruise missile.By your criterion,the vast majority of cruise missiles wouldn’t be cruise missiles!!The writer of the article probably meant inertial navigation systems.Many of technologies used for the Tomahawk(which is your obvious reference) are now used for a host of missiles including the Boeing Harpoon & the Brahmos.The Brahmos is still not a complete project-it will get a datalink as well as the capability to use GPS signals(from the Russian GLONASS,when it becomes fully operational in about 4 years).
http://www.howstuffworks.com/cruise-missile3.htm
This gives a primary definition of cruise missile!!