Aussie here, but our markets and economies in general have an unusual amount of similarities.
Firstly you're taking it from the peak of an insane bubble when the price was ridiculously over inflated for a very short time.
If you draw a more smoothed line through that period, it looks like it would have averaged around 8,000 at the time, which means it is close to doubling over 20 years. So you only would have done that terribly if you invested most of your money between 1999 and 2000, unlike those who dollar cost averaged in adding steadily as they worked over the years.
Secondly, that does not take into account dividends. I would estimate that it would have approximately doubled again when taking into account dividends for the total return.
Still not good, but not quite as bad as it first seems, around 5%.
Nothing at all wrong with going 100% all world index and ignoring overweighting home country, and many advocate that.
If nearing retirement though, you may need to consider how much of your assets are in your home currency. If you counted up all your CAD bonds, investment property equity, pension/ss, and it didn't cover about half your assets, you might want to consider moving some international equities to the hedged version to cover currency upside risk. Not necessary if you are young though.