I don't think it's correct to say that Sharpcast was removed, per se, because its practical effects have instead been baked into basically every action it used to modify. Every Thunder cast is instant and free, and Every Paradox casts generates a Firestarter proc, so it's less like Sharpcast was removed and more like Sharpcast was given a 5s cooldown and had its animation cut to zero frames such that it required no instants to weave. We no longer need to choose between F3P and TC because we always have both.

The job's harder because of Flare Star and no ice Paradox, but easier because of auto-Sharpcast and 40s Swiftcast. I also expect that actually being able to pile on the Spellspeed will make a big difference.