It's because we are cules and feel we lost one of our own, and someone we knew for these past few years. I personally also feel guilty for any bad things/criticisms I had of him while he was coach.
I know we had a disappointing exit to Bayern but let's not forget he gave us the best Liga in our history. He was also a key man during the Pep era. He should be remembered as a good manager as well as a great person.
Cesc is slow but still quicker than Kroos, Busi and Xavi. Speed isn't important for that type of player anyway as I keep saying for the ten thousandth time but nobody seems to listen.