Dunno how i was a badboy there but ok. About the "gang bang" part, i dont know if you could handle both BBurg attacking you with his whole army (160k men), Denmark messing in Livonia with about 50k men, France attacking you with rougly 200k men, and England/Holland conducting small sieges on your colonies. Defending yourself with only 250k man. Depleted the entire MP pool, the mercenary button got greyed, and there was no way i could win it. Before "ganging" drake, Poland (me) was the first one getting ganged all by itself. If you still think the gang was fair, download the save game from the link i provided, and check it by yourself. I am fairly sure you will see if that gang was needed or not.
About the second example, poof, can you beat a fleet 2 times your number (rougly about 1000-2000 extra warships) without leaders, and exactly the same NT as your enemies? Yes, i though so.