Yes, you did say that. Specifically, where do they terminate on the other end? This is a very important part of my line of questioning, because it may relate to a hazard.
I ask, because if both pairs of conductors terminate on the same pair of lugs in the generator panel, this is an improper installation. Conductors of that small of a gauge are not permitted to be paralleled. Even if the double tap was improper (which it’s not in that brand, as has been pointed out), the possible paralleled conductors are an equal or greater hazard.
If one set of these conductors feeds the generator panel with ‘normal power’, and the other set comes from the generator inlet, this is a GIGANTIC red flag waving, jumping up and down, safety hazard.