Are Melanthius' actions at the end of Homer's The Odyssey, when he arms the suitors with fresh weapons, considered treason?

In Homer's The Odyssey, Melanthius
arms the suitors—who have disrespected Odysseus' family, home and servants—and it is
definitely considered by Odysseus as treason. The suitors are Odysseus' enemies, waiting
like vultures to take his "widow," home and property by
force.

In turning his back on Odysseus, and supporting the
suitors, Melanthius not only betrays the master of the house, but throws in his lot with
the suitors who Odysseus has promised to kill.

As they sit
in the great hall, the suitors have been separated from their weapons and armor. When
Odysseus begins his attack, they have nothing with which to defend themselves.
Melanthius (unbeknownst to Odysseus), takes weapons from where they have been stored and
starts to outfit the suitors. Odysseus has a moment of concern when the suitors begin to
arm themselves, noting that someone must be helping
them.

On this
the goatherd Melanthius went by back passages to the store room of Ulysses, house. There
he chose twelve shields, with as many helmets and spears, and brought them back as fast
as he could to give them to the suitors. Ulysses' heart began to fail him when he saw
the suitors putting on their armour and brandishing their spears. He saw the greatness
of the danger, and said to Telemachus, 'Some one of the women inside is helping the
suitors against us, or it may be
Melanthius.'

Odysseus
punishes all those who consorted with the suitors, this includes Melanthius and any
women who slept with the men vying for Penelope's hand. Melanthius is punished for his
part, first hung from the rafters by the neck to suffer. Euryclea reports regarding the
serving women's behavior: they slept with the suitors. Odysseus orders that the women
first be made to help dispose of the dead, and then be killed
themselves.

When the women have been dealt with, Odysseus
returns his attention to Melanthius, who is mutilated for his treasonous
acts.

As for
Melanthius, they took him through the cloister into the inner court. There they cut off
his nose and his ears; they drew out his vitals and gave them to the dogs raw, and then
in their fury they cut off his hands and his
feet.

The actions that
Melanthius takes against Odysseus and his household are considered traitorous, and
Odysseus takes his revenge on those who are guilty.