The Reds didn't learn anything, because they already knew. Notice he has a 1 year contract. He was filler from the start, overpayed, but a filler non the less.
That's how I saw him, a bridge an inning eater and an excuse to keep any young guy down in the ML so they could control his workload.
Of course the plan also had the Reds tanking early on and there was no plans on the Local Weekly's running stories about how the Reds needed to GET player as opposed to trading players, they didn't figure that they would have big crowds in June either.
The general customer base has 2 months of baseball to watch and it looks like the Reds gambled that the swag they could get for Wilson and Lidle wasn't worth the bad press and empty seats and reduced revenue.
Doesn't help build a team any quicker than many would want, but it also doesn't burn the Reds Brand down anymore with the casual fan, who by the way far outnumber the type of fan I am, and they bring their kids and actually buy stuff at the stadium