Oh....so the thought that life in the human realm is most conducive to the advancement spiritually
is then just...rumor?
No - in the six realms of samsara the human realm is the best realm in which to advance spiritually.
It seems shakumuni Buddha was teaching or setting the example of attaining enlightenment in this realm not other.
That's correct - Shakyamuni Buddha manifested the long sutric path to enlightenment taking 3 uncountable eons.
As the Mahayana developed, "short cuts" to enlightenment began to be taught. Pure Land practice is one of these "short cuts". In the Mahayana sutras Shakyamuni Buddha either taught or inspired these sutras and the teaching found in them.
Is that enlightenment then better than this example.
No - the enlightenment of a Buddha is the same no matter how the bodhisattva attained it.
Or was Shakumuni Buddha then showing a false example for some such reason...
Nope, he just took the long path. And underwent all kinds of terrible difficulties. In one life as a prince he was working on patience and his father killed him by chopping off his arms and legs. In another he was tiger food (and the tigers became his first five disciples). It was a lot of blood and trouble. But times are difficult for realization and Shakyamuni also gave short-cuts to enlightenment - Pure Land and Vajrayana practice.
Times have now changed so Buddhism is no longer as it is....the message is now a different one....is that the thinking? Then the original message then is no longer valid due to circumstance would seem to imply it then was a imperfect message.
Not at all. People can take any of the paths of the Buddha that they wish including just practicing for a better rebirth. The Buddha gave a wide variety of teaching for many different kinds of people.
How bad can be these times that the circumstantial nature of things then changes?
Have you been reading history? Humans are turning this planet into a hell realm.
It would seem to closely approximate the theists heaven if it held property or circumstance, isolate. Are the theists then holding the true path to this view?
Theists do go to a heaven realm (if their karma throws them there at death). However a Pure Land is a place perfectly conducive to attaining enlightenment. It's not a heaven realm. It's sort of a womb for birthing Buddhas and Buddha activity.
Bodhi had a good suggestion - read the Amitabha Sutra.
_________________Kirt's Tibetan Translation Notes
"Only you can make your mind beautiful."
HH Chetsang Rinpoche