Agreed but it might still be that weekend. They've had it on the Friday or Sunday when its clashed before. Brighton - Nantes in 2018 was on Friday at 7.45pm when Pride was that weekend.
I'm guessing the schedule looks a bit look like this.
Almost certainly there will be a Amex friendly on the weekend of 4/5/6th
And possibly ? 1-2 free dates for Brit friendlies before the US trip.
Depends if there's a training break in Europe as well as US trip
Training starts on/around June...