Is Giratina Altered form a prelude to Giratina Origin form?

I have read a few posts on this site to the effect that Giratina Altered form is a pathetic attacker and basically trashing that pokemon. But isn't Giratina Altered just a prelude to Giratina Origin form? I think Niantic released the altered form first for good reason. Yes, it is pathetic as an attacker, but capturing it generates candies that can be used on the Origin form. And the Origin form might be pretty good. If the Origin form had been made available as a raid boss first, I think it likely that fewer players would have been interested in raiding the Altered form when it became available, so Niantic released the Altered form first. Makes sense to me. What do you think?