I mean, that's a fair point. But you gotta realize that because of the other huge problems - like mobility and setup - being able to line up that kind of burst is insane, and usually, you'll dance to force cooldowns even if you don't have everything lined up. This will make those dances even less effective.
The main point is that rogues need a good burst window - and when they don't have it - due to either mobility, set-up, or trinket nerfs, it makes them pretty useless.