IMO terrorism is a "waffle word" that doesn't really have any meaning anymore. Originally a use of violence and intimidation against civilians in pursuit of political ideology, it's come to mean "people we don't like, who aren't state actors and don't fit conventional organized crime narratives."

I don't think it's necessary to staple the term to the action in order to take it seriously. It should, however, be taken seriously as the national security threat it is. For instance, climate change is a national security issue but oil executives, while distasteful, aren't terrorists.

I agree that many folks in the tech community (and especially here, though I don't know if they're overrepresented here) treat technology as platonic. That's not going to cut it moving forward. Technology that enables bad things in the world should be curtailed even if its "neat."