Guessing you mean season, not series?
Have people been calling for big heart to hearts? Not seen that myself.
For me I would have liked to see more to the scene with Jesse, that doesn't mean reconciliation as I said above.. Just something a bit more than what we got. The relationship between Walt and Jesse was the heart of the show and it barely got any screen time.
Yeah well I got the impression from Dominos posts (above) and also his post below that he would have liked more from each of these encounters, as he described the Walt/Skyler final scene as 'half baked'. Personally I felt the lack of words in both scenes was right as it symbolised the understanding between the two. In Skyler's case, this whole series has been one of a quiet understanding between them that is testament to how well they know each other from their years of marriage. When Walt did his false phone call to Skylar with the police listening, it was clear she understood what he was doing and the motivation behind it, and I felt again with their final scene, they didn't need to say anyting beyond Walt's confession that he did it for himself, because all the other things he could have said he knew Skylar already understood, and in return Walt understood Skylar's feelings towards him now.
Jesse I think there's more of a case for extended dialogue, but again to me, how they ended it felt right. Jesse is completely broken from the past couple of years and his time as a slave with the Nazis. But what is a further exchange going to show? They know what they've been through together and they know that they've both betrayed each other, something they never would have done earlier in the show. Over the past couple of seasons we've seen them move apart, separated by Jesse's morality and Walt's plunge into darker and darker depths. Jesse knows Walt is dying, he's made his anger clear in their past exchanges, in his willingness to rat Walt out to the DEA. And equally I think that despite this anger, there's still a level in Jesse where he remembers who Walt used to be, and is grateful to him for freeing him for the Nazis, an act that fits with the Mr. White he knew and liked, rather than the Heisenberg he despised. As with Skyler, I think their relationship was developed enough that they didn't need to say everything they felt out loud, because it was understood in those silent exchanges. I think Jesse's lingering morality and affection for Walt meant that it was enough for him that Walt was going to die, without him feeling the need to hurt him or have it out before Walt finally went.
There could have been a lot more to be said if the writers felt the need. They never had the chance to discuss Brock or Jane, Walt never got the chance to express either his remorse or lack of it to Jesse, they never got in to Jesse working with DEA, and there is tons more that could have been said, even if it wasn't specific. As for the rest, I simply disagree, the ending would have felt more fulfilling for me if the shows 2 main characters had exchanged more than a simple look, before parting ways.
Yeah, they could have said a lot more, but as explained above, I personally preferred that they didn't say it and left it to be conveyed silently. There would be no conclusion to the conversations about Brock or Jane, Jesse would have found these actions unforgivable no matter what Walt had said, and Walt knows there is no significant explanation he can provide that will alter things in any way. For me both characters understood this and Walt also understood why Jesse went to the DEA. Personally I liked it being understated, but can completely understand others didn't - it's just personal preference.