There is no problem with Eze. 40-48 being true. I know of no-one here claiming that they are not. There is a huge problem with their literal fulfillment being yet future, however. Heb. 10:18 is crystal clear - there are no more sin offerings ever to be given. There is no ambiguity in the statement, "There is no longer any offering for sin."
Thus, Eze. 43 cannot apply to the future. It can only apply to the past. Since it is patently clear that there was never a physical Temple built to the scale of Ezekiel's description, it is clear that, if it cannot be future, it must be symbolic.
Yes, there is. Ezekiel says some things will happen. You say they never will. You are saying he's wrong. You just have a fancy way of rationalizing that statement.
Dan