[Ottawa Green]

Manchester United 1 - 6 Tottenham Hotspur
Aston Villa 7 - 2 Liverpool
Chelsea 4 - 0 Crystal Palace
Everton 4-2 Brighton

The managers of the losing sides employed the same tactics as RL!

Not just this weekend. 144 goals in 38 matches. That is 3.8 goals per game when historically it is normally between 2.8 and 2.8.

The lack of fans to lift some players.

Easy answer for the Liverpool game.
1;Play up near the half way line and leave acres of space for talented players on the opposing team to exploit.
2;Underestimate your opponent’s at your peril.
3;Lack of concentration at key moments.
4;Not much effort in closing down by mid and forward players.

Manchester United game.
1;Lack of desire /looking at you Pogba
2;Lack of talent for this level of club/ Matic:McTominay:Shaw:Lindalof:Martial. I could go on.
3;From the management side this club needs a clean sweep.

I guess if you dissect all the other games some,all,or more of these problems could be found.
Ask Scott Parker at Fulham.
Lack of the pressure of fans in the stadium is another excuse that can be rolled out.
My two cents worth

Could also be the evolution of football tactics.