Have you played the game?
Lambda is nerfed Nu. No jump cancel swords makes her much less threat, and her jump c stuff just doesn't feel as brutal. No ridiculous 6k combos anymore. Definitely more fun though. No more sword traps, she actually benefits from being aggressive when she has advantage instead of running away.
Tager actually has combos now, and people are winning tournaments with him. No, gadgetfinger doesn't combo, it's a reset move like Ragna's that points him in an advantageous position after doing it.
Tsubaki is mid low, for reasons you stated, and both Ragna and Litchi are top tier thanks to longer combos (system changes plus belial).
Jin is worse now, though I don't know why. Everyone I know who plays him though hates his changes.