If you're asking how to reattached the removed pylons, I think most modeling glue would work just fine.
I'm guessing the actual issue with them becoming detached has to due with the weather at the time they were released. They're shipping from PA, so they experience extreme cold (around that time it reaching -20 F pretty regularly) which made the seams more fragile, so combine that with the rough treatment most packages receive during shipment and you've got a recipe for broken pylons. Thankfully they're easily fixed.
The lower pylons are still not right. They are still bowed in to far. I am wanting to remove them and trying to figure out the best way to go about that.
That doesn't sound like a flaw, but eagle moss specific design. Unlike the real studio model they altered the angles of the lower pylons to allow for a sturdy support system. And it is distracting.