You're not taking into account how fast he is. If he rushes for the deva path, how is the preta path going to stop him on time? One stab and the deva path is gone.
You're not taking into account what Bansho Tenin does. It manipulates gravity to pull its target closer. Every time it was used none of its targets were able to just run away because they couldn't touch the ground. The same thing will happen with the Raikage.
I also think that the Raikage can get away from bansho tenin if he's fast enough. With his speed, I wouldn't be surprised if he could break free if he reacted quickly enough
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. He needed chakra arms to push himself away from the rock that was about to crush him.
SM Naruto and Pa with all of their Sage-Mode enhanced strength could not break out of it. Neither could Kakashi.
The mere fact that KCM Naruto and SM Naruto were unable to break out of it with speed implies that the slower Raikage would also be unable to do the same.