How are adcs ever a problem? (Why are they complained about?)
All (except maybe urgot and graves) are squishy. Annie is in the meta right now. Annie stun whether q, w, or ult will end the adc as her burst will ONE COMBO any adc. Vayne? Low ranged, her q invisible won't save her. Jinx? She might get one auto off on annie before annie gets to her. GG. Any adc can be countered by point and click cc ---> annie. Even kalista would get bursted by annie in one combo.
they will survive Annie's burst (usless she is fed) , cleanse her stun, and quickly outsustain her damage.