Why IMU is a multi multi bagger, page-11699

Not sure that I agree with you there.
The change is based around the level of tax paid on profits within super.
Govt have deemed that $3m super is more than enough for "normal" people to retire on.
Should you have more than that, then you would pay a higher tax rate on profits made within super.
Personally, I think that is long overdue.
You do realise that the estimate is that it will only affect a small percentage of people (I believe less than 10%).

And whilst we are on that subject, I also believe that the CGT 'free' period of only 1 year is more than generous.
Just my opinions.