We had already agreed that General Relativity should imply Bob never sees Alice reach EH, regardless of quantum effects (at least not in finite time). We also agreed that Bob does see the BH evaporate (in finite time to any desired fraction), as seemingly dictated by QM. Thus it cannot be that the two are observed simultaneously!
Moreover, there cannot be a chain of events whereby Alice evaporates into photons (emanating from EH), and those photons (originating from Alice's mass-energy) hit Bob before the photons of Alice when she was near, but did not reach the EH yet (again because Alice cannot be observed to reach EH). It would violate causality.
It can't be that both Alice falls into the EH and we receive Alice's energy from evaporation: either the BH does not evaporate or Alice doesn't cross the EH (even in her own observation). Assuming Hawking radiation really does exist, then some kind of evaporation would need to occur as objects approach the EH, it cannot come directly from the EH boundary.
Could it be that Alice herself is seen to evaporate -- the evaporation might stem directly from Alice, before reaching the EH? My claim that the EH/singularity never forms would be valid.
I could be terribly mistaken of course, but your arguments did not convince me unfortunately (quite the contrary).
I wonder if what I'm missing could be related to the expansion of the EH as a body approximates.