"Only 5% of tech companies have a female founder".  As there are no asymmetrical barriers to invention/innovation/company formation in Canada, this statistic, introduced by the author, is prima facie evidence that men & women may have different levels of interest and aptitude in both creating and leading technology companies.

Thus, if anything, women may be over-represented relative to the overall talent pool.

Should girls and women be encouraged to learn about and be successful in the technology industry?  Absolutely.  However as much as my wife and I (both technology execs) encourage our young daughters, their level of engagement and interest is far less than our own at their ages.  Time will tell, but their ultimate life choices will be determined by their preferences rather than any lack of opportunity.