Who was sad when Cole became a ghost?

Long before time had a name, the First Spinjitzu Master created Ninjago using four elemental weapons. But when he passed, a dark presence sought out to collect them all: Lord Garmadon. So I, Sensei Wu, his brother, sought out to find four ninja to collect them first.

LOL

UMMM NOT WHAT I SAID

And?

Cole deserves more love. Although he is not a ghost anymore.

Agreed. He needs all the love