Chaplains seem to be a dying breed. I usually see new ones pop up wide-eyed and exuberant to do their work. Then they disappear in under a year and a new one pops out. Spread pretty thin too - seen one covering 6 units once. Our (western) society is moving away from religion IMO.
I can understand their place in the CAF though, where they tend to and provide different services to believers and non-believers alike.
I don't really see what Indigenous First Nations cultural practices from hundreds of years ago brings to the table with a society that's largely uninterested. Under 5% of of Canadians identity as Indigenous. 2.9% of which identify as First Nations. (2021 census numbers mind you)
2.8% of the Regular Force and reserves identify as indigenous (2025 numbers), no numbers on First Nations specifically that I found.
Interestingly only 27% of Canadian Rangers identify as indigenous, I thought it would be much higher.
All that to say I don't see what Injecting First Nation culture in the CAF or Canada would accomplish but it could just be over my head.