If I claim I have super powers and there are 0 documented cases of me doing anything super natural,

Is it somehow hard for you to understand that there literally cannot be documented cases of Mossad killing someone and not being linked to it, because as soon as they were documented cases, they would be linked to it?

Should I assume also that Mozambique intelligence carried out a gazillion sophisticated stealth assassinations that none of us has discovered yet?

No, but if you claimed that they never carried out a single one specifically with the argument that none was ever discovered you'd be falling for the same logical fallacy.

Also, compared to Mozambique, you know that Israel has far higher technological capabilities, a certain international backing and is in semi constant war alternating between cold and hot with most of it's neghbour states, which makes one more likely to have both the need and the means to have successfully carried out secret killings than the other.

Especially since x (too lazy to research right now) assassinations by Mossad were discovered and linked to them, so you know they do kill people. And from there you basically claim they get discovered 100% of the time. Which is ridiculous.

That's availability bias. Do you know how many they carried out that weren't discovered as such?

I don't know what to tell you man. The presence of the issue and the protests about it were far larger after her initial school strikes than before. Globally. And if you think that's nothing, pray tell me what you have done that has had any global impact whatsoever.

And yes, I would praise a player that enabled their team (through motivation or else) to score 5 additional goals in a losing game, even if it meant they only lost 10:5 instead of 10:0.

Even without tangible achievements, boosting the climate movement on a global level like she did is not nothing.

She sparked Fridays For Future, the last German government got elected largely in the wake of their protests (among others) and achieved huge steps forward in transitioning our energy supply to renewables.

We are sadly now back to conservatives, but they won't be able to reverse all that was achieved.