I'm not an expert in the field, so I might be woefully wrong, but as far I know the Minoan hypothesis (i.e. Linear A encodes a language isolate that we call Min

I'm not an expert in the field, so I might be woefully wrong, but as far I know the Minoan hypothesis (i.e. Linear A encodes a language isolate that we call Minoan) is almost universally accepted nowadays, even though it was not yet the case right after decipherment of Linear B in the 1950s. Most controversies that exist nowadays don't seem to be about Linear A being Minoan, but rather about trying to demonstrate a relation of the Minoan language itself to another language or language family. There have been attempts to link Minoan to Semitic languages , Anatolian languages and Etruscan, among others. Besides these attempts, I guess there still exist a small number of scholars who still argue that Linear A represents some form of Greek, but it's not a very popular opinion. The fact that the language of Linear B is Mycenaean Greek as uncontroversial as the existence of the Indo-Eruopean language family or the fact that hieroglyphs encode ancient Egyptian. Anyone claiming otherwise is probably going to be politely ignored and thrown out of the room.