Source 4 of 6: The Munster Rebellion

"Many of the Munster men broke into rebellion in October 1598, and joined themselves with Tyrone's forces, spoiled the country, burnt the villages, and pulled down the houses and castles of the English, against whom (especially the female sex) they committed all abominable outrages. . .
The Munster rebellion broke out like lightning, for in one month's space almost all the Irish were in rebellious arms, and the English were murdered, or stripped and banished. After they inflamed Munster with the fire of rebellion the Ulster forces returned back to Tyrone.
Tyrone found it easy to stir up revolt, because of the hatred which the Munster lords bear to those English settlers which possessed their ancestors' lands."

About the Source

Source Details
Extract from the Itinerary of Fynes Moryson, published in 1617.
Context
From 1600-1603 Fynes Moryson was Chief Secretary to Baron Mountjoy, the Lord Deputy of Ireland. He travelled widely in England, Ireland and Europe, collecting stories as he went. His Itinerary was a description of what he saw and heard on his travels.
Puzzled?
Fynes Moryson was a loyal Englishmen and no friend of the rebels. Also, he did not actually witness many of the events he describes, so historians need to be careful about accepting what he says completely. However, he does seem to accept that in Munster Plantation made rebellion more likely.

Questions

What were the causes of the rebellion from:
a) An Irish point of view?
b) An English point of view?