1. If you are going to argue that being granted a title shot outright for beating an aging, post-USADA WW Lombard coming off a loss at WW is comparable to getting a late notice fight after beating Silva, Leites and CB, then I hope you are just trolling.
2. The division does not just move on. If Hendo wins, Bisping, Rockhold and Weidman's credibility is shot to pieces and there is no momentum behind the division. It hurts the individuals in the division, devalues the title completely and will have a tangible impact on drawing power. Worse, nobody can beat the retiring elderly champ to re-establish themselves, it will likely just be two brutally defeated former champs fighting over a meaningless trinket.
There is this nonsense going around MMA circles that titles are meaningless. People make the mistake of thinking that those arguing for the 'integrity' of titles are talking about meritocracy. I'm talking money, because that's what stable titles bring. You ignore them when necessary, but you don't ruin their legitimacy and long-term value.