The boys on the Ulster forum are kicking up a massive fuss about this. Quite a bit of Welsh hate going on actually, sour grapes everywhere.
I don't think Cardiff are coming across badly at all. The way I look at it, If Dan Parks suddenly now said he wanted to stay with Glasgow, yes we would be disappointed but we wouldn't want a player who's heart is not in it. If Rush has decided he wants to stay it does perhaps make him look slightly erratic. However, Ulster could spend the money elsewhere and by the sounds of it have a good back-row coming through anyway.
I don't think he realised how much the support he's got at Cardiff and perhaps was taking for granted how good the team is. We've essentially built a team around Xavier for 5 years now and for the blues not to keep him would have been awful.
As long as the correct compensations are paid and everything is done legally I don't suddenly see why this is such an evil occurrence. There are plenty of good backrow around for Ulster to get their hands on considering the massive amount of money they seem to have floating around. Ulster will gain some money now anyway.