Blink Players can be easy to track at the start of a game just from the sound alone. Just make Blink a bit more quiet and I think it'd be an ability with a good reason to be used instead of double jump.
EDIT: It seems I stand corrected. Probably should raise my KD before saying anything next time.
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I think that because of the nature of Blink, the sound indication is actually really important and justified. You're invisible for some frames, so the audio cues must compensate the lack of visual cues.