Bureaucracy and elaborate processes slow things down. Every so often, that's a great thing.
Or, put differently, how difficult it is to exploit the public's privacy for financial gain in Canada?
I'm Canadian, and I'm glad that Google didn't get carte blanche to come in and build their surveillance dystopia.
And if by retail you're referring to burger joints or Target, I'm afraid that's just market effect.
And foreign direct investment in energy, food supplies, telecommunications absolutely has national security implications. I would be loathe to have a foreign entity become the major stateholder in our telecommunications infrastructure. I don't harbour any deep love of the Rogers family, but they are solidly Canadian at least.
Not all investment is beneficial to the citizenry. I'd much rather my government err towards overcautious than overpermissive.
Absent from most of the media reports I've read today is that Sidewalk Labs was facing yet another approval decision on the project from Waterfront Toronto in less than two weeks (May 20, extended from an earlier March 31 deadline). My guess is that they heard through the grapevine that the decision was going to be highly conditional, and that the project was going to be saddled with yet another set of hoops to jump through, so Sidewalk Labs just decided to bail.
It's basically exactly the same pattern we saw in late February with the Teck Resources decision. The company bailed literally days before the deadline for approval.
COVID has nothing to do with it.