Well, this change is fine to me.
1.4 sharpness is acceptable. In addition, it will influence the meta, so that there will not be so many stall teams. I strongly dislike the game that is boring and can be continued until the 1 hour time limit.
Also the Gallade is weak facing to most of attacker, like Scizor, Garchomp, Dragonite..even gengar. The 1.4 Sharpness will not change this result, its disadvantages are still remain. However, it will benefit the meta, the game meta will be more suitable for most of players, so I think that is a good change.
What's more, there are still many pokemon can stall the Gallade, I think that's fine.
I stand with TC this time, and believe it will benefit the meta.