Yes no doubt. Remember super is a just a tax structure, not an investment class in its own right.
Yes super has political risk, but should not be singled out for this.
*Buy an investment property? How about the risk of more CGT? Increasing stamp duty (tax)? Increasing land tax?
*Buy direct shares? How about the risk of losing refunded franking credits? CGT changes?
*Put money in the bank? How about the risk of some Financial institution tax (FID) or a govt freeze/seizure(Cyprus anyone), or below inflation real return?
* Use trusts? How about see through provisions rendering tax benefits useless?
* Buy Gold? How about Govt reporting requirements and CGT changes?