Tbh I would in fact classify individualist terrorism like this or like the RAF or any such group as an ultimately reactionary response to failure or delays in the building and sustaining of a movement, I am personally experienced with the extreme frustrations of how weak the left is in the west and the equally extreme desire to just “do something, make a statement”, but indulging in revolutionary daydreams of eating the bourgeoise and tearing down their system has never to my knowledge helped aid the left in any meaningful way, and has several times hurt it in the backlash.

This is pretty much the only tactic I can say I instantly will denounce from any leftist movement, others I will try to look at the viewpoint of the people performing the tactics and strategies but just violence for the message of violence is a tactic that has been dead for over a century and is to a large extent self indulgent.

Edit: Also wanna note that the closest the Bolsheviks came to doing similar acts to the propaganda of the deed people, which is robbing banks and cash transports for funding, they tried their hardest to keep a secret cause it would not only cause friction in their party itself, but waving around guns and grenades was very obviously understood to not be the look they wanted to represent them.