Is it assumed that these bullets have no deformation when striking soft tissue or even bone?

from link above:
"If the bullet hits hard bone the flesh core dissipates but immediately reforms and the balance between it and the pressure ring restabilises to redirect the bullet in the original direction of travel."

Not buying this statement one bit.
Are we to believe that this bullet can encounter bone, be temporarily disrupted and then magically realign itself in the same "direction of travel"?
Maybe the bullet could be temporarily disrupted and then stabilize again - or calm down as far as yaw, but redirect to its original direction? No way.
We would have to assume that the tip of the bullet is in no way deformed for this to even be posited, and to think this could happen in the short distance of a wound channel? Hard to believe!

I think they mean that the bullet realigns to the original orientation of travel - meaning the bullet is not tumbling - staying on axis to the direction of flight. Orientation and "direction" are not interchangeable terms.