But you're acting as if this year's deal should count with the Welker side and calling it a 3 year deal. That's precisely the problem. The Patriots hung Welker out on a one year deal, which is exactly the opposite of giving him the sort of long-term security that comes with a 3 year deal. If you're going to talk about the team offering him a 3 year deal, that would require them offering a 3 year deal.
Also, you're acting as if they should get credit for offering more this year than last. Well, since they were offering a ridiculously low deal last year, why should they get credit for giving it a slight upgrade when Welker is having yet another 120+ reception type of year despite the nonsense the Patriots were pulling at the start of the season, and the result is that he's still franchise worthy, and that franchise value would bring about a $2 million bump over last year? Your deal is really just a $2 million bump in exchange for accepting yet another 2 year offer instead of getting something longer term.
Your concerns about them lowballing him are certainly valid, and it will remain to be seen whether or not they come up at all + exactly how much.
You are right that it shouldn't be lumped in as a "3 yr deal" since this year was under the franchise tag, but I have worries that the front office may very well see it that way.
You make a good point that potentially offering a real 3 year deal now instead of another 2 year deal may be the key, but I have doubts at to whether or not they will actually do that.
My "offer" (If it were really up to me I would probably try to be more creative by adding a 3rd year where they could possibly back out if needed) is probably a lot closer to what the front office is thinking, at least in my opinion anyway. It may very well be considered wrong or unfair, but I just don't see how they come up anymore than what I suggested.
The fact that they screwed up last year is done and over with, so the fact that they are coming up now another year later is where I am seeing the "fairness" of the deal. There's nothing we can do now since it is over with, but if they were thinking that a 2/16 deal was fair, I can't help but feel that the best we may get is something in the 2/20 range now.
As you said, adding another year on the deal may get it done, but if that is an option I would wonder why it wasn't last year? That is what makes me leery that they will go much higher.
In the actual sense of "equality" you are probably much closer to right than I am with Welker's deal and production, but I am looking at it from the front office's point of view in a more realistic sense (or at least attempting to from their point of view).
We may very well have seen the last of Welker this year due to some of the concerns and factors that you bring up, but I am not guessing that there will be "that" much more of an upgrade myself. We will have to see how it plays out.