That is absurd. When a murder occurs, someone is dead, regardless of why it happened. All murders are heinous, and there are more motivations for murder that are intolerable than can be counted. Setting one above all is irresponsible. Furthermore, in saying that the motivation of hate being more illegal than others, it sets a standard that the government is punishing people for their beliefs and emotions.
Hate is an emotion, as much as love is.
Just believing in something or feeling something does others no harm. A person who commits murder, assault, or vandalism will be further punished for doing it for certain reasons. The legislation may be triggered by conduct, but it is punishing the belief. Accepting this as legitimate sets a dangerous precedent. This is all happening because a very disturbing crime occurred, and, naturally, people want to do something to make sure this never happens again.