The annoying part about him not having his costume, is that Daredevil proved his costume can work from the first fukkin season
All they had to do was make the nose show on daredevil's cowl so there's no overlap, and give iron fist the look he's supposed to have. His costume is simple. If they didn't shy away from the Kun'Lun elements and they gave him some theatrical villains they could make him deciding to wear his kun lun garb in new york make sense.
That's the thing about comics. One small creative tweak on a character and superman becomes batman. Batman becomes rorsharch.
Ah well...