Why is my Suggested spending very low now, and very high later?

ESPlannerPro is telling me that our living standard per adult now (I am 56, my wife is 62) should be about $29,000 per year. When we are both retired, the recommendation is for over $72,000 per year. This make no sense to me. I thought that the whole purpose of this program is to smooth out our lifestyles.
Here are the numbers:

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