Sim, os benefícios de diferentes recursos podem ser empilhados no mesmo destino.
A regra relevante é "Combinando efeitos de jogo" do DMG p. 252 (adicionado originalmente no Errata do DMG)
Different game features can affect a target at the same time. But when two or more game features have the same name, only the effects of one of them—the most potent one—apply while the durations of the effects overlap. For example, if a target is ignited by a fire elemental’s Fire Form trait, the ongoing fire damage doesn’t increase if the burning target is subjected to that trait again. Game features include spells, class features, feats, racial traits, monster abilities, and magic items. See the related rule in the “Combining Magical Effects” section of chapter 10 in the Player’s Handbook.
A regra relacionada do PHB / regras básicas, "Combinando efeitos mágicos", menciona apenas magias:
The effects of different spells add together while the durations of those spells overlap. The effects of the same spell cast multiple times don't combine, however. Instead, the most potent effect--such as the highest bonus--from those castings applies while their durations overlap, or the most recent effect applies if the castings are equally potent and their durations overlap.
For example, if two clerics cast bless on the same target, that character gains the spell's benefit only once; he or she doesn't get to roll two bonus dice.
Como as duas auras são características diferentes com nomes diferentes, os benefícios de ambas as auras se aplicam a qualquer pessoa na área de ambas.