What’s everyone got against throwing soup?

I’ll be honest, my first reaction was: Well, that’s not gonna help 🙄. And judging by most of the coverage on two climate activists throwing soup at a Van Gogh painting, that has been a common first reaction. My second reaction, though, was: Hm, how sure am I about this? This article is one of very few that took the time to go deeper and look at actual evidence. Turns out: «Despite many people claiming that disruptive or radical protests have negative impacts on a movement’s likelihood of winning, the evidence suggests the opposite is true: Nonviolent radical tactics are likely to increase support for more moderate groups, in ways that increase an overall movement’s chance of achieving their aims.» Apparently, it’s called the radical flank effect.