Being good means using a connection of both those methods. Working together Clicking, Keybinds, Keyboard and Mouse turning.
You need to see that theres a limit of the ammount of Keybinds on your keyboard, i know theres a lot, but it's a short time before it gets confusing. I will promise you 100% that people who put every single ability on a Keybind, will eventually die because they got mixed up with keybinds.
Keeping the basic more important abilities that you will use almost every fight, on a keybind. Then the more unused abilities, the ones that you will only use once or twice in a game, leave to clicking.
The average player has around 5 base abilities that they use constantly, so i use F,G, Shift-F, Shift-G, and Shirt-Q usually for my healing ability, if im on a healer, or for my PvP trinket. I have other Keybinds, but those are my base ones that work perfectly. I have smooth transfer from stafing with the keyboard to turning with the mouse. Clicking and using keybinds work together aswell.
And hey, even some jumps can be done easier by backpeddaling