If we have to keep putting civilians in jail so that criminals don't benefit for a brief time, I think that thought should be rethunk.

Well, as I mention in another comment [0], I'm uncertain as to whether the prospective bill will actually pass, and thus the "interim" situation could become the ongoing status quo. Additionally, such a situation would also include all the geopolitical risks I mention in that other comment, too, and could thus put the Canadian economy in peril.

I'm a supporter of legalization, but I think half-measures can lead to avoidable, unforeseen negative consequences.

[0] https://news.ycombinator.com/item?id=11538708

That is why I favor legalization over decriminalization. It looks like the Canadian PM has thought this through, though, so I don't expect problems like that.

In the article he specifically said he wants to keep criminals from profiting from sales.

Do you think decriminalizing for possessing a small amount in the interim would still fuel crime?

Well, 10 grams isn't that small (though certainly not large), and retails for about 100 CAD. So, if people become more likely to smoke up once it's decriminalized, then it would seem to me that it would provide a windfall for the sellers, distributors, and producers. I have no hard evidence to support this belief - it's just a supposition that seems to me to be reasonable and logical.