Also, observation is that inflation has been ongoing for a long time, we don't seem to have spikes of growth. Afaik we have basically 2 phases one where inflation dominates and the one prior.
As for evaporating without losing information that's the whole point. The holographic universe theory states that a black hole doesn't destroy information. The holographic universe is a consequence of no information being destroyed in the formation or evaporation of a blackhole. It's literally the entire basis for the theory. My theory above is just postulating that as a block hole grows/shrinks due to information falling into it or evaporating from it a holographic universe on its surface would also grow/shrink.