@MassiveVernon I've just tested wraith out and had the good fortune of running into a bangalore and a caustic
The bang I obliterated as I just popped my tactical and went straight for her due to no infringement on my visibility until i was nose to nose with her.
Caustic was a bit trickier as I couldnt use the same play as bang.
Popped the tactical and just tracked him until I came out and just had to anticipate his movements with my shots....it worked but it's not a dead certainty....I'm sure better players than me can utilise it more efficiently.
As for the pause in the tactical, I just avoided open ground like the plague and used my tactical whilst passing cover.
I'm not a brilliant wraith player but we got the win so yeah....I wouldn't see these changes are over detrimental.