i did not express myself correctly, apologies.
That's quite alright! I just wanted to correct your point as artwork from Art Academy can be adapted and kept.
For what i can see there's no inherent advantage of having this in a NIntendo platform in comaprison to the wide expectrum of image creation and learning programs you get in a PC, even for free. If there were some functionality like incorporating the user created content into Nintendo games then i would see more of a point.
From a gaming standpoint? No Art Academy doesn't have a point or use but that's not it's intention. Art Academy as a series is intended to be an art program and a teaching tool for art.
Yes there are many art programs for PC that do the job just as well if not better! But those programs don't come with any sort of tutorial (unless you seek those out, and even then user created tutorials come in varying levels of quality) - Art Academy: Lessons for Everyone gives lessons of a calibre you would pay quite a pretty penny to get from professional classes.
This iteration is clearly intended to be more relaxed and fun for kids, but with the intention of getting them confident with art and drawing without tracings or guideline assistance. Just because it's not a game, doesn't mean it doesn't have any worth.
Regarding the Wii U app? Can you at least share your drawings in any part of Miiverse? Because for what i colud remember people expended hours creating those detailed drawings with some really rudimentary tools, just to make a post. It is kind of wasteful sadly.
Art Academy pictures can be posted in the Art Academy Miiverse community where people generally get plenty of attention if they put the effort in!
To say the tools are rudimentary expresses a lack of understanding of what the Sketchpad actually has. It's got paints, pastels and pencils which is a pretty broad range of tools, the only awkward thing about sketchpad is the awkward limitation that switching one toolset for another kind of "locks in" what you did before in the set you used before. Though this does present the interesting effect of Sketchpad having "layers" - be it a limited number (as I believe each tool set can be used only once per drawing)
Besides that, it's not about what tools you use for art, it's what skill you bring to the table. People can do amazing things with ball point pens. People do amazing things with the absolute basic tools in Miiverse. Art isn't wasteful if you enjoy what your doing (and learning from the experience too!)