Pangaea are a slow starter nation. Good for those who like to live and die by diplomacy. I would never discount a Pangaean nation unless the player of it didn't take advantage of their stealth and ability to have a free income of units.

Certainly not a 'powerhouse', but if you give them long enough; they can be very dangerous. Any nation that has standard Blood has a chance to go crazy on you if you don't keep them on lockdown.