Literally, Liverpool isn't as strong as in those season's when team like Manchester city were in top lead for the EPL title, like win matches with opponents completely hands down. What am I trying to say? Arsenal gave Manchester city the biggest pressures in all the seasons that City won the EPL trophy. Unlike what they are doing this season with Liverpool, the competition is not heated as Arsenal have been so inconsistent with their performance dropping points even in games they should win and take all points therefore leave Liverpool with little or no pressure in the race this season.
In the last season and the last two seasons, Liverpool was not in great form like Arsenal and Manchester City, and the season made those two Premier League trophies easier for Manchester City to win. If Liverpool had been in great form these two seasons like Arsenal and Manchester City, it should have even been a block way for Manchester City. It was only Arsenal that was the determination of Manchester City winning those trophies, like what is happening now. If Manchester City had been in great form, Liverpool's gap differences with other teams may not have been much like this.
But if I have to say, it is Arsenal that has always wasted their chances of winning the Premier League, always like three seasons now. They always have opportunities, but the times they need to make use of those opportunities, they always mess up with their matches. Even this season, Arsenal has the opportunity to remain in that first place on the table, but they mess up, and that is how Liverpool takes the opportunity and remains there and continues to increase their points gap, and the points gap is so wide that it is clear that Liverpool has won this season's Premier League. In fact, I don't know when Arsenal will have opportunities to win the Premier League and make use of the opportunities.