They’re regulating engineering of software and electronics.

From Engineers Canada;

In the case of software engineering, a piece of software (or a software-intensive system) can therefore be considered an engineering work if both of the following conditions are true:

• The development of the software required “the application of a systematic, disciplined, quantifiable approach to the development, operation, and maintenance of software.”

• There is a reasonable expectation that failure or inappropriate functioning of the system would result in harm to life, health, property, economic interests, the public welfare, or the natural environment.

That does seem to me well defined. If you disagree then it’s okay.

Edit: taken from this: https://engineerscanada.ca/sites/default/files/public-policy/professional-practice-software-engineering-en.pdf which also add context.

I cannot speak about electronics as my education was in software engineering.

That’s missing the point. Engineers perform at a specific level. You don’t expect civil engineers to build the bridge. Can they do it? Sure. But that’s not the profession. Same with Structural Engineers, Chemical Engineers, Industrial Engineers, etc. They are at a higher level in the planification and execution process and will likely have signatory responsibilities on the project. If the bridge falls, the engineer does have explaining to do.

The equivalent for a software engineer would be (in the US) more at the level of architect with responsibilities higher than developers.

But engineers is not a protected term so everyone is an engineer now.