dnd 5e – Do the magician's bracers make the wizards unbalanced?

the Guildmaster & # 39; s Guide to Ravnica book introduces a magical element called Illusionist's Bracers:

While wearing the bracers, whenever you throw a cantrip, you can use a
Bonus action in the same turn to launch that cantrip a second time.

This seems to me that this allows Warlocks to launch water explosion twice per turn

The Wizard water explosion It was already one of the strongest cantrips in the game, with damage equivalent to 4d10 + 4 * (modifier of Charisma) with the invocation of Agonizing Blast, and Hex gives an additional d6 for blast (provided that the character has at least level 17 ), which means a total of 8d10 + 40 (given a Charisma score of 20) + 8d6 as long as all the hits. This would allow a Warlock to have cantrip damage with an average of 108 damage per turn.

If this is correct, would this unbalance the sorcerers in the game if the object is in the game?