My kneejerk was to say, yeah 1->3 is a tripling. In modern journalistic terms that is 'skyrocketing'.
Then I read TFA. Yep 30->90. 'skyrocketing'.
That's not to say it isn't concerning. The downed wire incident that is the highlight of the story seems quite bad. But human drivers do much, much worse things, with very high frequency. Weekly sideshows, for example. The article is very unfair.