The law here is ostensibly supposed to be to deal with exactly that situation. It does some good things, like giving police the power to confiscate those illegal ebikes, and to hold parents legally responsible (unless the parent can demonstrate they genuinely could not have prevented it). But it does some incredibly fucking dumb things too, like the 10 km/h speed limit mentioned in the video. And all to prevent people doing something that's...already illegal. Because electric motorbikes that operate without pedalling or which can go above 25 km/h with pedal assist are already illegal to ride in public. Police fail to enforce it currently, so there's no reason to believe they'll be enforcing it if this passes. Except perhaps the occasional blitz of enforcement in easily-accessible places where the vast majority of people they catch would have been doing the right thing prior to the law's passing.

Side note: we have police with bikes of their own who occasionally do this, so hitting the bike tracks doesn't stop a pursuit. The thing that stops a pursuit is that the police know that a high-speed pursuit just increases the danger to both the accused and to the general public. So they only pursue under very limited circumstances.