The citation noted above from the SPLC  used "attacks" 4 times....and used incidents interchangeably with attacks....

They noted attacks by number 86 here a few hundred there to specific class groups (a distinction I don't think you understand) .

I have a lot of confidence in the SPLC....I think they are highly experienced in determining when a class of citizens is being attacked......this is NOT an individual to individual difference of opinion....this is a class issue with vulnerable people being threatened one way or another....otherwise SPLC would not be involved.