Avoiding the ATC/Pilot bashing, in my limited experience I would have thought that when ATC need help they ask. Something like;
ATC: "G-ABCD ATC"
G-ABCD: "Go Ahead"
ATC: "Would it be possible to taxi to the end of the runway, we're just checking the ground radar?"
G-ABCD: "No problem."
or ...
ATC:"G-ABCD taxi to the end of the runway due wake turbulence"
G-ABCD: "Sorry did'nt realise I caused it!"
The crux of the matter here is that G-ABCD knew what was going on in both cases. Going back to the original issue, it seems that ATC either assumed that you knew that you were being moved for wake turbulence OR the forgot to say what they were up to.
Someone posted earlier "just ask". Which is something I can recommend, in most countries I have flown I have always got friendly ATC always willing to help.
