Whenever I hear of that group, I think "oh, those nutcases", and not "heroic deeds for nature".
I am convinced they are actually run by big oil to make real environmentalist look bad, and create a path for harsher punishment and criminalisation of climate protests everywhere. So far, they have been quite successful in that regard.
I would say yes? It's hard to quantify getting more people angry about their leaders not doing anything about climate change, and voting in/out people who do more rather than less to solve it. If anything it's making more people curious enough to look into what she's protesting over, rather than making people hate her and hence ignore everything she says and dislike what she stands for. To me getting people interested and involved seems like it's the most change you can make as one person no?