I mean, Spurs and United have seen COVID cases rip through their squads in recent weeks which highlights such how contagious the virus still is.
The fixture list is already congested and constant postponements aren't really an option but we're seeing it already and it's not even winter yet.
This is before you even think about how having 50k people all using trains, buses etc to get to stadiums is basically the exact opposite of the advice being given about social distancing, avoiding large gatherings etc.
I completely agree that after 2 years we need to being our best to return to "normal" but at the same time we can't irresponsibly and blindly just charge headlong into situations that could make things worse further down the line.
Hopefully the push for booster jabs will help to avoid the need to stop fans attending games and to stop a situation where the league may need to be suspended.