Asassins Are Not Even Assassins Any More
Assassins were made to do a lot of damage in a short amount of time before the enemy team could react. Now they are fighters that deal a lot of damage if they can magically get their whole combo off before they get one shot or instantly peeled. Like actually, how do you expect to proc talons passive late game if the enemy team has a janna or the enemy mid laner or adc has a dash? I'm probably going to avoid playing "assassins" (cough squishier forms of fighters cough)
and you can do hideous burst... from a range... in a half second... on a pretty mobile champion... who is also pretty tanky and hard to kill.