That government ban was wrong. Surely the whole point of a strike is to publicly show management the level of dissatisfaction of the staff? There is no need to act in an intimidating manner. I've engaged with those on picket lines (non railway). There was a bit of a party atmosphere. I learned a few things about their cause. Indeed if certain members were tasked with public engagement on the picket lines the unions may get more support.
You‘d only end up with confrontations at every picket line, not to mention that strikers have Withdrawn their labour and aren’t being paid so are under no obligation to turn up at their place of work.
Most of the public that you see being interviewed have been brainwashed into thinking everybody’s paid the same as a driver so you’ll have a situation where some disgruntled passengers are spewing uninformed bile at strikers manning the picket line.