As of a few balls ago; Ireland had scored almost 100 runs more than the West Indies had by that point in the game. 350 at least seems to be par for this pitch against these bowling attacks
The West Indies had around a ten over spell where they averaged less than 2 an over and averaged below 4 an over between the power plays: and in my eyes even if you manage to go mental enough in the last ten (as the Windies did) you can't possibly win if you go that slowly. Ireland have gone around 6.5 consistently throughout, which meant that they didn't dig themselves in a hole and need to rely on a big attack at the end.
Not to demean the efforts of Stirling and Joyce and the other Irish batsmen who've batted very nicely, they've paced the innings perfectly and really never looked like losing the game