doesn't shallow mean low cost ?

I am not a geologist and have limited experience with gold stocks, but I have a question if anyone has a minute to answer.

If they have a shallow, long, wide resource, wouldn't that mean low cost to mine ? Isn't a 22km wide flat 2Mill oz resource better, cheaper than a thin, deep vein where you have to dig deeper and deeper ?

I actually thought the recent JORC announcement was excellent.

If the resource is indeed shallow and wide, then if they have 500k oz in only 3.5 km, then in 22km, even if only half the area is the same grade, wouldn't that imply a 2Mill oz resource , possibly by end of the year ? or is that too simplistic.

If indeed, it becomes a low cost 2Mill oz resource, wouldn't our market cap be closer to $500Million+
Zaaro