hello! tbh I think it depends entirely on the person - if they consider their experiences w/ aromanticism to be as significant as their experiences w/ alloromanticism, then they can call themself aromantic as well :] tis valid
altho if we base off of the original definition, alloflux mostly stays within the alloromantic spectrum n only sometimes to the aromantic spectrum, so they're not entirely associated w/ aromanticism. someone who's aroflux on the other hand, which functions the other way around, would be more widely seen as a part of the aromantic community