I don’t see WAL storage payments behaving like typical DeFi transactions where front-running is a major concern.
On Sui, transactions operate on owned objects rather than competing over a shared global pool. A WAL payment references specific token objects and blob metadata, which limits how much a validator can reorder transactions for advantage. Even if reordering occurs, there is little incentive. Paying earlier does not secure cheaper storage, priority access, or exclusive rights. Fees are not bid competitively in a way that creates extractable value.
In practice, this makes fee market manipulation for critical storage operations both unattractive and structurally constrained.