Does anyone else think CCP is too Canadian-focused?

I (23 year old) graduated last year and have been working full-time for just over a year. I'm starting to put on my adult hat and wanted to get my finances and investments in check. After browsing this sub and r/personalfinancecanada for awhile, I saw the Canadian Couch Potato (CCP) was commonly recommended so I did more research.

Looking at the model portfolios, I noticed both the TD e-series and ETF portfolios have 40% invested in Canadian markets (equities + bonds). I feel like having 40% invested in Canada (30% Canadian stocks and 10% Canadian bonds) is not a good idea especially since Canadian markets have historically under-performed. Does anyone else think CCP has too much Canadian exposure and that it would be better to allocate more to US/international (e.g. up to 70% from 60%)?

If it matters, I'm living in Toronto with a base salary of ~$80k. I plan to put my bonus ($10-30k) into savings and just live off my salary.

For a refresher, the TD e-series consists of:

• 10% CAD bonds
• 30% CAD equities
• 30% US equities
• 30% international equities)

The ETF model consists of:

• 10% Canadian bonds (ZAG)
• 30% Canadian equities (VCN)
• 60% global equities excluding Canada (XAW)