I always just assumed that Marley would rather have multiple titan shifters, rather than putting multiple powers on one titan shifter. For example, an Attack on titan shirt and a war hammer titan both on the battlefield could do a lot more damage than an armored titan with the powers of a war hammer.
Attack on titan shirt, Hoodie, V-neck, Sweater, Longsleeve, Tank Top, Bella Flowy and Unisex, T-shirt
Best Attack on titan shirt
Annie didn’t know that Eren has the founder titan, they just had a hunch and only know that he has the attack titan. Probably under orders by Zeke too not to eat the founder titan, because of Zeke’s plans or whatever.
The second Attack on titan shirt is simpler, just because you removed titan abilities, that doesn’t mean you can convince millions of people that you can’t turn titans anymore, they will still look at you with distrust and hatred, and thus war and persecution will still exist. Titans might be gone, but the children of Ymir persists, and so does the devil.