Better not throw the first stone on this one.
But the great difference is that Genesis told from the very first moment that 3x3's artwork was a nod to the Beatles, they never hid it.
Quote"When we released the 'Three By Three' EP, we did a Beatles parody, with a nice glossy cover photograph of us all jumping off a Wall"
Phil Collins ("Interview with Johnny Waller" Melody Maker 25th Dec. 1982)
The same with Land of Confussion, another nod to the Four-Headed Monster boyband that was stated by Genesis at the time.
Regarding The Way We Walk 2, its cover is based on that of The Way We Walk Tour poster where the band re-enacted the I Can't Dance choreography with their profiles copied several times in a sequence of black and white photos and coloured outlines, with The Way We Walk 1 showing the b+w photos. I think I Can't Dance choreography (also seen in the Invisible Touch video) is based on the green man of the (crosswalk) traffic lights, hence the coloured outlines.