From another 'sauce':
"Roll-in --
Jet is on the rwy at a target ground speed and the hook is dropped at a predetermined distance in front of the wire... not unlike taking the long field gear, or a precautionary arrestment like the USAF would do at mid-field."
My imagination says that accelerating any Naval Aircraft to a groundspeed where the nose can be raised and held up with hook dropped is fraught with undesirable possibilities - especially any non-view over the nose, ahead - and leaving the runway unintentionally.
Hooks do not like being dragged too far on a runway - I'll guess the pilots doing roll-in tests are good at dropping the hook exactly as required.
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Addition: Grapevine says: "Prior to this
fly-in, 3 successfull roll-ins were performed". I'll wager the smoke seen in the photo is not from a 'roll-in'.