England set the good target by struggling a lot, they were batting first and after doing so much struggle they managed to reach 263 runs and raised a little bit of hope that now England could win this game if they ball well but nope.
Because of West Indies' fast and responsible batting, at the start of the game West Indies lost to Evin Lewis, he scored just 19 runs and there was some good vibes for England but from the other end, it was Brandon King who was hitting and playing aggressively at the start of the game and with him was Keacy Carty who has also started to hit sixes and fours and they both scored century each.
Well, England was in huge trouble, especially after losing some of their important wickets, and I taught at that time they would hardly score 200, but surprisingly, their lower middle order played sensible, and through their vital contribution England finally scored decently and gave a bit of confidence to his bowler while Target was defending, and it's true just like you explained, they get one of the consistent players, Lewis, and in my opinion they will think now momentum will shift to them.
But they were wrong because King and Carty built a very vital partnership and scored more than 80% by them while rest if required, were filled by the rest of their batters and that's how they won the very important series, Now I believe they have very good chances to smash them the same and make a comeback of his team in the modern cricketing world.