Desire doesn't really fit in the deck. Without setup spells like grim tutor and impseal desire can be weak. You don't want to play a lot of high cc spells that don't win the game on they're own when you have a bob out. This deck also sacrafices some of the explosive combo plays that long or even tps can make to improve the shop matchup with bob, which also helps in many other matchups as well.
Sorry, but are you kidding? Since when doesn't Desire belong in a storm deck? Even more into this one, since hitting a Tendrils with Desire is gg. It is one of the strongest cards a storm deck can play. You cannot just sit on your Bob and wait for something better.
Granted, it is not very good against MUD, but against any other deck it is invaluable.
And which explsive combo plays do you think this deck cannot perform compared to long or tps?