Not necessarily.It is all that's ever really spoke about in the hobby but crossing the same species from two different catch locations is also a hybrid.
Some species can look quite different and have evolved differently over many years even though they are the same Fish.Crossing these fish wipes out all that seperate them into that variant and is a hybrid of those two locations.
This is why it's so hard to identify a lot of species.Veija zonatus, guttulatus and sp coatzacoalcos are extremely hard to identify from each other due to variants crossing,natural hybrids and hybridised fish by unscrupulous fish keepers.
This is why it is worth preserving fish with catch location before they are lost for good and all we are left with is uncertainty of our cichlids true identification.