Liverpool players were really fatigued after their UCL clash and even in the match against Newcastle, they weren't really at their best and barely holding on, while Newcastle were bubbling with energy and trashed them without pity or caution.
It's also notable that they're 12 points away from an obviously weaker Arsenal team, but it's not a criteria to relax since the season isn't over yet and there's still about 9 matches to go. It's important to note that Arsenal is only 4 wins behind them. I like to think the season is not yet over until the trophy is handed over to them. They've a chance, but they must protect it.
That's right. And Newcastle was able to take advantage of it which played a significant role in their victory in the fa cup finals. That said, there are still 27 points up for grabs with 9 matches left in the season. While Arsenal can theoretically win all their matches it's unlikely they will overtake Liverpool who are in a strong position to lift the Premier League throphy. With their consistency, Liverpool remains the favourite, especially given their ability to grind out results in crucial moments.