Please explain how the observers different coordinates can affect the way they see events ocurring in a single location
(Edit: i.e. I would expect that if you are sitting on top of the lamp post (stationary with respect to it), and I were 100 metres away riding my motorcycle at 100 km/h with respect to it, that if two cars hit that lamp post at the "same time" we'd both
see that occur at the same time. There's no reason why either of us in our "different coordinates" would see one car hit the lamp post before the other.
While at it, please explain why you think this can be, when at the same time (no pun intended) you reject that events which occur in different locations
can be simultaneous for one observer but not simultaneous for another observer.
That is, you demand that events which are simultaneous for one observer must also be simultaneous for another - but to "explain" this you allow events at a single location
to be simultaneous for one observer but non-simultaneous for another observer! Another contradiction!)