You're only including direct physical violence as part of your "not peaceful" definition. But blocking major road arteries and bridges that are essential to the economy and to bringing in/out services and goods to the people of Ontario is also an act that a peaceful protest wouldn't do.
I'm very pro-protest by the way. Including for people I disagree with. A few broken windows, some small contained fires in trash cans, and just the general side effects of having a thousand+ people in a small city space all protesting I'm absolutely okay with, even a few little breakout fights, I still would consider that a peaceful protest.
Blocking major roads using heavy machinery with no alternate route that can meet the needs of the local population, that goes beyond peaceful in my opinion.
P.S.: I've also watched live streams, I always do, I've seen BLM protests first hand for example, and all media always exaggerate a protest, so I'm the last person who'd believe the headlines at first. In this case though, I know even the truckers probably don't think it's that big a deal that they have their trucks blocking roads, but given the already stretched crisis of the Pandemic, the second order effects on supply is a big deal. Please keep protesting, but don't block those major roads. Move to smaller roads even if you want.
They know what's coming, when they decided to block those roads, they knew they didn't leave people a choice, they are cutting off a supply line, this is beyond protest, it's an attempt to say, if you want your supply back, do what we want. I'm sorry, that's beyond: We won't stop voicing our concerns and expressing our rights to protest.
https://www.go2hr.ca/legal/strikes-lockouts-picketing-and-re...
The only reason for the act is because of the illegal blockades which is affecting essential services, goods and livelihood of local business and citizens.
A peaceful protest cannot hold people hostage by blocking their access to essential services and goods, and trapping them in.
If the protest stopped doing that, then it's fine to continue as long as it wants.
You can't have a very small minority get its way by simply holding others hostage to their services and goods. The point of a protest is to be heard and get people to consider your cause, not to consider your demands through extraction.