People reading too much into it. Of course there's a possibility, while Nintendo has been very committed to dedicated video game consoles, ultimately their survival depends on making sure they shift with the times. If for some reason dedicated video game consoles start to fall out of fashion, they'll have to figure out a way to move on from them just like Microsoft or Sony would in that situation.
We don't want dedicated consoles to fall out of fashion though, especially with how horrible most games for smart devices are. For every Super Mario Run there's at least a thousand Candy Crush Sagas.