You don't think these fantasies of Clinton and Obama landslides are a little unrealistic and wishful liberal thinking? What would you Democrats say if Republicans made maps of Christie and Rubio landslides. Both are just as unlikely.
I think the baselines are as follows for 2016:
Generic D vs. Generic R = 50/50 race, probably decided by 1 state
Hillary vs. Generic R = Reverse Ike 1952, Clinton gets about 55%
Christie vs. Generic D = Bush 2004 level win for Christie
Christie vs. Clinton = Obama 2012 level win for Clinton
So yes, I do think Clinton starts out as a heavy favorite. But if Obama has fallen to Bush 2007-08 approvals, she just won't run in the first place. I don't see anything particularly unreasonable about this and I've gone to great pains to be fair to both sides.