Should cash purchase include conditional delivery?

[carshopper]

I am buying car (new sedan) with cash in full. Price is very good. Large dealership, certified for major brands.
Asked to review draft of full paperwork before signing.

• In agreement OTD price is on the line "total to finance"
• Nothing to the effect "paid in full"
• Agreement refs "conditional delivery agreement", which says I am entering "finance agreement" (not in paperwork, at least yet) and "purchase is not finalized", "transaction is conditional on final approval"

Why is this in cash deal? They say "standard language", refused to alter. I walked out.
Am I overreacting?