Especially when the definition has been so radically changed at the same time. There is no longer any need for any attack (or any crime of any kind) or for any expression of hate (or any unfair prejudice of any kind) towards any group of people. Or even for any of the people involved to say anything - reports from uninvolved people count too.
So if, for example, you insulted me for some reason and a third person reported that you had insulted me because I'm an immigrant, that would add to the "hate crime" figures. Even if I'm not an immigrant. Even if you neither knew nor cared whether or not I was an immigrant and had insulted me for a completely unrelated reason. Even if the third person hadn't seen either of us and you hadn't insulted me at all and in fact we'd never even met.
The "hate crime" figures have no connection to reality and mean nothing at all except for their use in propaganda.
There might have been an increase in actual hate crime. Or no change. Or a decrease. Nobody knows. It's not being measured.