not sure why i didnt realize sooner.. why did it had the grid fins?
edit: i think this question ties in with the interstage.. maybe they wanted to test some portion of the block 5 inter, but at the same time didnt wanna fully recov the booster lol
edit: i think this question ties in with the interstage.. maybe they wanted to test some portion of the block 5 inter, but at the same time didnt wanna fully recov the booster lol