Earlier quoted context omitted.
A) She was still a child. B) She was imprisoned, repeatedly, and tortured, as the article discusses. C) Is it your opinion that everyone was "lucky" to live in 1968 Spain under Franco. Or just her?
Nobody wanted her tortured except the criminals torturing her. Throwing Molotov cocktail is trivially an criminal offense. OP is making it clear that framing it as she was a “free spirit” is ridiculous.
This is a protest against a fascist regime we're talking about. I don't know the exact context of any of this because I'm not Spanish, don't speak the language, and don't really know all that much about the nuance of 1968 Spain. I'm fairly sure you're just as ignorant of this as I am but the difference is that I'm withholding strong judgement one way or the other instead of jumping on one detail.
I do know that throwing a bunch of tea you don't own in the sea is also trivially a criminal offence. Kicking the shit out of an SS-officer is also trivially a criminal offence. etc. etc. You can have a long discussion about when violence is or isn't justified. I don't know enough about this specific situation to have a strong opinion. But pretty much everyone agrees that at some point you need to look beyond the law and trying to reduce this to just a matter of the law is massively naïve at best.