Arcane trickster is weak in 5e too soooooo that's in line(also it's an issue with the limtied spells at the moment, no Shield in particular hurts Eldritch Knight and Arcane Trickster)
Have to say my AT on the tabletop has never felt weak. Here I dropped rogue and restarted after getting to level 2 and realising that all of my abilities were basically already accessible by every other member of the party without being considered "class features".
