Well I think both Talbain and Felicia can get away with easymode stuff and scrub tactics but they have a lot of potential when you stop mashing buttons and spamming jump.
Like Talbain in particular can knock off 50% of your bar with c.MK into ES Cannon, and he has things like dash j.LK, j.MK, c.LK xx Moment Slice / ES Cannon. The cannon causes a lot of recoverable damage but if you keep pressure up with dash-ins and c.MK xx 3K (the command hop) you can stack damage. On some characters he can also dash j.LK, j.MK c.LP c.MP xx Moment Slice but I think it’s worth it to learn how to c.LK into Moment Slice.
And both Talbain and Felicia have dash cancels that make them drop sooner/faster like Sasquatch does which is good to know when dashing over bodies or when going for a dash-in tick throw into his command throw. And his command throw is one of the better ones in the game, it’s 2F startup, invulnerable startup (9F inv), and damaging, so it’s worth it to look for cmd throw setups. Because it has inv startup you can even use it against some blockstrings/setups. He can option select with his tick throws too where the opponent has no choice but to jump or DP to try and avoid getting grabbed, but if they jump he doesn’t grab but instead does MK or HK which anti-airs.
I mean his game really doesn’t need to be all about spamming j.MK j.HK and c.MK. There’s more to him than that.