The georgaphical map you show does not mean anything in isolation. The ancient Macedonians were GREEKS. They spoke Greek, they wrote Greek and that is proved by the historical record.
The people that call themselves Macedonians today are Albanians and Slavs which bear no relation to ancient Macedonia.
If you cared to READ the website that you pointed to in your post you will see that Macedonians spoke a form of ancient Greek. It also proves and describes how Greece came about and that it was essentially made up of City states in which Macedonia became one of.
There is no mention of Slavs and Albanians. If anything, the map indicates that Greece should expand to engulf FYROM! Obviously this isn;t going to happen because the population of FYROM today bears no relation to ancient Macedonians and as such Greece has no teritorial ambitions on FYROM. However the population of FYROM wishes to link itself historically to ancient Macedonians, which they cannot do, as proved by the historical record.