I don't see why they didn't have Eleanor's name for a episode's title. It just doesn't make any sense. I mean, why are the chipmunks, Brittany and Jeanette get to have their names in the title and not Eleanor. For example...
The others has their names in many of each episode's title in 2015 Alvinnn!!!
Here's the episodes names to prove...
Jeanette Enchanted
Don Juan Theodoro
Albrittina
Simon for President
Saving Simon
Theozilla
Alvin's Secret Powers
Alvin's Got a Brand New Bag
Simon the Superb
Brittany the Body Snatcher
Alvin's Wild Weekend
Jeanette's Secret Garden
Theo Knows Best
Theo's Big Night Out
Britt's Picks
Theodore's Calling
Clumsy Jeanette
Alvin's Assistant
Simon Says
Alvin Management
Big Bro Theodore
Simon Saves the World