the fun fact about wii u is that, albeit having very good games, it's a very limited list (about 30 of them are decent).
So the people that have a job shouldn't concern themselves very much about this IOSU exploit, because, obviously, the first thing people will try to do is deobfuscate it, analyze it and bring piracy with it. And, seriously, with 30 games or so on the list being good recomendations, you can pay all those in one year or so, depending on the salary you win.
Not only that, 5.3.2 and below already has piracy, and most games already work on loadiine.