I assume because cutting the ones you listed would mean they would mean Marth, Samus would be alone, and Starfox would only have 2 rep. Pokemon would still have 4 slots, with 6 playable characters. Plus, Ike and ZSS were heavily involved in SSE. Add to the fact that ZSS was revealed in the first Brawl trailer.We all agree that "cuts happened because of time constraints." The question is, "Why Mewtwo as opposed to, Ike, or Zero Suit Samus, or Wolf?"