What is the most likely reason the battle of bloody marsh was vital to england and the english-owned colonies?

After the battle, the Spanish did not try to gain any English-owned colonies.

 Shay's rebellion was important to highlight the problems with the Articles of Confederation because it showed the people and government how terrible the Articles couldn't handle a crisis. 

 Many of the poorer people had to take large loans to keep their farms functioning while they were off fighting in the revolution. When the war ended, they had no money to pay the creditors back, who began pressing for the money. 

I hope this helps.