Have used 3 of the seatposts from different time periods and they have been one inline and two setback without any problems. I have found though, with all three, that the radius on the bottom part of the saddle clamp does not match the radius that is in the top of the post.
It is easy to correct by clamping the post into the frame, without the saddle clamp bits, then stuff the top of the post with some rag/kitchen roll/underpants and take a large half round file(fine cut) to the radius, in the top of the post. It files really easily and you can get a very nice finish. Offer up the lower saddle clamp with a light source behind it all and you will see where you need to remove material. When done de-burr it and re-assemble.
I went all weightweenie on mine and use the bottom half of a USE saddle clamp(the half pipe bit), some round upper saddle clamps from a cracked 3T seatpost, and its all pulled together with some new titanium bolts, meant for an Exotic post.
Pretty naff tbh, if this radius difference is common, but although it looks like the two protrusions, for the bolts, might be stressed this doesn't seem to be where any of the boken posts, pictured on the net, have broken. They all seem to be the whole head shearing off, or snapping right above the frame, at the seat clamp.
Personally; i would not trust an internet random and his/her story about broken things. There are way too many sh!t stirring trolls and idiots out there to know who is telling the real story, or not, about breakages. Always best to get the skinny on parts from close contacts, or those close to them.