Broker using projected earnings for valuation

I'm currently evaluating a deal where SDE grew by 84% inredactedI've based my valuation on 4 year average SDE, which provided a much lower value than what the seller is asking. The broker told me the asking price is based on a 4 year average SDE that includes 3 prior years and projected SDE for this year, which is 7% higher thanredactedI am not yet convinced the 2023 pop in earnings is sustainable, so including a projection based on this number seems pretty optimistic.

Am I off base thinking that using projected earnings is too aggressive, especially when the projection is based on 1 year where earnings jumped so significantly. Is this just a normal practice brokers use to juice EV?