Good but I don't entirely agree with the message
First I want to say that 3D Movie Maker was the greatest thing. It taught me a lot about animation, I used the program on and off from age 4 to 14 and learnt just simple stuff like eases/squashing and stretching things without being taught. It had just the right balance between ease of use and enabling creativity (it had pre made scenes but you could still create your own scenes out of props/same with hand made characters you could animate freely) and then on top of that the small modding community behind it.
The problem with these programs are when they're marketed as an actual alternative animation program and purposely try to limit creativity in bad ways in favour of ease of use. The other problem with Go Animate specifically is that it looks like garbage. 3D Movie Maker at least looked like a pretty cutting edge videogame in 1995.
I laughed at this a lot, and agree if you're talking to people who consider it a long run alternative to flash. But I think having 3d Movie Maker as a kid benefited me more creatively than it would have to have had Flash at that age (I am talking strictly as a tool to get me into animation), and I can probably say the same for this program, and they shouldn't necessarialy be seen as useless just because they're not as good as the real programs. It makes it at least appear easy and fun, which is important.
But of course if you're above the age of 14, just get flash.