I think there are two issues.
The first is on changes to the MLAT, which would allow foreign entities to serve orders in Canada. There would be a process where the minister approves the request, it goes through a judge, the judge agrees that the criteria made out in the Criminal Code are met, and then they collect that data back.
There is no requirement that the law under investigation also be a crime in Canada, so there is the possibility of seeing foreign governments seeking to enforce repressive laws or politically motivated investigations through this process. There is no real safeguard against that, except for the actions of the minister executing things at his discretion. In this case, especially because there isn't necessarily a judge involved in the foreign jurisdiction, it can be an administrative order. The minister has to commit to exercising his discretion to not authorize a process where the crimes being investigated are potentially repressive or politically motivated. There is no safeguard in the law.
There could be by adding the fact that the law would similarly have to be a crime in Canada. Then we wouldn't have that problem. That's one way to make it broader. However, right now, it would be at the minister's discretion.