Old and Evo Profiles

This sure would sound like a topic that may have come up already but I failed to find it. In vf4 we could all save our Character Profiles Individually on a memory card and take our memory card to another ps2 and simply import it. Althought now we cannot do that since the character files and game is saved onto 1 file alone. Now there sure SEEMS there could have many ways to avoid this (The main reason for changing the system would appear to be the money/shop feature). The verses mode could have been the only mode to be able to import profiles for dualing? Or maybe money wasnt usable if not from the game profile in use?

To cut it short:
1. Importing profiles from ps2 to ps2 was good in vf4
2. Taking it out for money/shop items was avoidable
3. So why was it done?