Auto-translated
The question is very debatable.
IMHO
The issue isn't so much with the Elves, but with the imbalance of other factions and their heroes.
an original approach :)
in principle, you can reason like this:
all factions are imbalanced, along with their heroes, except for the Elves.
only the Elves are normal... but even if they are the only ones, it's a minor detail, isn't it? :)
it's a matter of perspective, I understand... :)