The likes of Fabinho, Henderson, Roberto Firmino, James Milner and others all departed.
Speaking to reporters a day before Ajax's Europa Conference League Round of 16 tie against Aston Villa, Henderson stated: "It was the right time for me as a player but also for them as a team and for them as a club, as much as that hurt at the time. I was very emotional.
"Looking back in that period of time, looking back now, it is easy to see that it was the right decision made by the manager and the club. It was the best decision to freshen things up. If you look at Virgil van Dijk becoming captain, Trent Alexander-Arnold becoming vice-captain, and how they've stepped up again this season, I think it has given them another lift.
"They have been two huge players for the team this season. I think it was the best thing for the club and the team and you can see that in the performances and how they've done, as much as that hurts me.
"It's football and you move on. I'm so happy it's worked out for them so far and I've just got my fingers crossed it can be a fairytale end for Jurgen because he deserves it."