Meatwad Definitely. Of all the players to blow world record money on...
I have no issues at all with them throwing +£150 million on Isak. We got the better striker at one third of the fee and we've built a strong defence and midfield. van Dijk and Robinson are aging and won't last a full season, and Trent is gone. That's quite a bad situation to be in considering the way they dropped off from February and onwards last season.
Adding Isak is not going to solve any of those energy issues. If he doesn't break down next season it'll be the one after that. They won't get comparable value on the pitch relative to what they pay and his contract will be worth like 10% of the club's total value. They could actually get into serious trouble over this when you look at how much squad work they need to get done. Part of why Liverpool had a renaissance to begin with was because they didn't do stupid things like this. Wirtz was already a rather big risk considering his fee and his preferred position. Adding Isak would magnify it.
I would pay attention to how Man United's decline started if I were Liverpool. Buying van Persie did add one final title, but then the wheels fell off an aging team and they started throwing huge money on big names instead of signing players they actually needed.