A hybrid exists because somebody wanted a plant to do something the species did not do well enough, and that is usually worth knowing about.
The traits bred for are the ones that cause problems: disease resistance, cold hardiness, a more compact mature size, tolerance of difficult soil. On a site that is genuinely hard — and alkaline ground at elevation qualifies — a plant bred for the problem frequently outperforms a straight species that merely tolerates it. That is the opposite of the reputation hybrids carry, and the reputation is mostly borrowed from a different argument about agriculture.
What hybrids are not is a shortcut past site conditions. A hybrid bred for disease resistance is still the wrong plant if it wants acid soil, and no amount of breeding changes what a plant needs from the ground it is in.
One practical note: most do not come true from seed. Seedlings off a hybrid revert toward one parent or the other, which matters if somebody plans to propagate and matters not at all otherwise. Named cultivars are propagated by cutting or graft for exactly that reason.
