Controllers suck

[Absurdity]

Dunno... My friend usually can't type while moving and attacking with kb+m. I mean you either type in chat or use skills and stuff. With controller you can do both at the same time.

Not really seeing how you could do both at the same time with a controller either tbh, unless you gimp yourself to type with one hand and play with the other...or can type with your feet.

[JohnSpawnVFX]

Not really seeing how you could do both at the same time with a controller either tbh, unless you gimp yourself to type with one hand and play with the other...or can type with your feet.

Move with (the thumb of) one hand, type with the other

Not recommended and a bit cumbersome but possible. If it's something short, there's also autorun.