That's true, but despite the odd bad game (Everton, Swansea), and taking into account the injuries, I think Wayne actually had a more than decent first half of the season. He was instrumental in that victory over City, and I remember quite a few very good performances by him. He wasn't "firing on all cylinders" if you will, but if he'd kept up such form throughout the whole season, I doubt we would be discussing much to be fair.
And I think the Madrid first leg game has more importance than what we might believe. It was a huge game and one where Wayne was used as a utility player. I think psychologically it affected him (as did the fact that he was dropped for the return game), and the end of his season was pretty meh (though the whole team seemed to be affected by the CL exit, really). I think what G. Neville was saying during our last home game, that he needs to sort his head out, is very true. Maybe he needs to understand his role and position within the club better, maybe Moyes won't have the same approach as SAF... A lot of elements need to be weighed, by both parties, before a final decision is made.
A lot of us see the whole situation as fans, and with limited info on top of that. We see a player who questioned the club's ambition come back, just a couple of seasons later, and express his unhappiness within the club. As fans, we're passionate and this is unacceptable. The truth is, except for a handful of players, playing for Utd is a job and when you work for a company, I believe it's important to know where you stand. What the expectations are from your management, what kind of importance you have for your company, whether you feel you're utilized as best as you should be... These are things that actually happen in real life, in companies, every day. If you're not satisfied of your standing within the company, if you don't feel it can meet your expectations or that you're undervalued, you're welcome to look elsewhere.
But again, this is my view and it's a lot of speculation. As a whole, I think the situation isn't as black and white as some are trying to paint it, and I don't believe we have enough info to have a real opinion on the subject. Unfortunately, a lot of us are jumping on his back and have already made our mind up, even though we might be basing our opinion on incorrect information.