Colonel Darren, I don't get why you seem to be saying with 100% confidence that Encourage has that effect. The flavor text that we received was vague at best. For all we know, it could remove any and all secondary / guaranteed effects. If anything, I would say that it does remove Hyper Beam's charge turn and Superpower's stat drops. They have been showcasing Hyper Beam and Superpower on Wargle and Hihidaruma respectively; surely there is a reason behind this.
Because I try to view this from a logical standpoint. Yes, I concede that there may have been a point to showing Superpower and Hyper Beam, and I find that more as showing off 'Yes, we are offensive. Watch us smash' type of points. After all, when looking at pure power, you don't get much higher up on Base Power than Hyper Beam/Superpower/Giga Impact etc.
However, my main argument still stands. I know Gamefreak's made a couple broken things before (Looking at Skymin and Darkrai, for starters.). But honestly, I am almost certain Encourage will work in a -very- similar way to how I stated because it would seem the most balanced. Certain secondary effects -must- occur, if they are built into the move with a 100% chance of a negative effect on the user. Now, if it's something like DynamicPunch or Zap Cannon, it could still be in the air if Confusion/Paralysis still occurs. However, when it comes to recoil/recharge/stat drops, I am certain Encourage will keep those negative effects as means of balance.
In summary, I -am- unsure of offensive 100% secondary chances, like DynamicPunch, but I am about 99% certain that defensive effects like recoil still occur, Encourage or not.
Edit: Also, Satchmo, I will take a guess and say that Hihidaruma will be physically bulky, but have poor speed and even worse Special Defense. Maybe some usable Special Attack, but honestly, something that bulky-looking with big arms is not going to be special based, I would assume.