That's like saying a few stocks out of thousands on the ASX went up post GFC as it went down from high 5000,s to low 3000's. Sure a few made cash by going long, but not many.
More power to you if you can continue to invest against the tide, but most non property investors of us don't have the time or can be bothered with the risk I suggest.
These positively geared places are not going to help a generation of people being priced out of houses own their home any time soon.
Quite possibly these places may not even outperform the humble investment in cash I suspect. Unless they are growing in capital value which is unlikely now IMO for a few years.