I don't even need 1 minute to realize how dumb are these changes at sPvP perspective.
Imagine those bursty builds (engineer static / mesmer shatter zerk / elementalist fresh air...) which cast 10 skills in a second with this new "sigil of vision". The entire burst is gonna be critical, because they don't need 3 seconds to cast everything.
Now imagine firebrand harrier with this new "sigil of celerity". 5 seconds of quickness will become 10.
What about +125 ferocity to Rune of Scholar? This is all what the 1 shot meta asked for.