Cardiff only had a Lee-Lo converted try to celebrate in the first 40, but after the break Cam Dolan and Garyn Smith touched down, with Gareth Anscombe's boot doing the rest for a 21-17 win.
The victory saw Cardiff leapfrog Edinburgh and the Ospreys to finish the Guinness PRO12 season in seventh, with Wilson keen to shine the spotlight on his star performer.
Wilson said: "Rey was outstanding, especially in attack. He always seems to use his footwork to beat the first man and then has the ability to get in behind people.
"I was really pleased with his performance and that of others.
"A lot of credit has to go to our senior players for digging in and guiding us around the pitch especially in the second-half.
"At half-time there was a collective discussion from our leaders and myself and other coaches that we just weren't at the races.
"We weren't where we have been in the past, we were 40-odd per cent gain-line success versus their 70 plus, so we were losing the collisions and you can't play rugby like that.
"We came out in the second-half and were like a different team, we had real collision in us and dominated in terms of territory, possession and scoreboard. We showed what we are capable of."
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Guinness PRO12 Blues News
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