Could the matchmaking be based on arena points instead of season points ? 

The arena live mode is nonsense atm, with 4000 points and 370 season points as low spender i keep facing players with 10 000+ points and full mythical teams.

Fun is 0, reward is 0 because you obviously loose almost every fight. 

And the system seems to make you face a very weak opponent after 3 or 4 fights lost, that's not fait either, and not fun at all.