Trott was given out LBW (not stumped) because hotspot was turned off.
With the evidence available there was no hotspot so it was the right decision given the lack of ball on bat. Michael Holding live on commentary was pretty clear it was out.
Agar's stumping was a debatable line call but split the comm box 50:50
That's nothing to the numerous outrageous decisions against Australia like Broad edging to slip / Bell being caught at gully / Rogers out off a Swann beamer that wouldn't have hit another set of stumps etc
Sorry, yes, the lbw. Trott got an apology from the ICC and it was Sky who messed up the review, so I wouldn't take too much notice of the commentators. The point is it was given not out by the on-field umpire, and shouldn't have been overturned, because the technology wasn't available to prove the umpire had made a mistake. The ICC have admitted as much.
Agar was out - he was given out on-field and again there was no clear evidence the umpire had made a mistake.
As for Australia, they've certainly had some rough decisions, and I see no point in referring catches for review - it's been shown before that they appear to be grassed on tv, when in fact it's a clean catch. Don't understand the fuss about Broad though - very few players walk when they've nicked it.