That's because broke it off into 3 paragraphs since I needed to specify things on a case by case basis. The user benefits has a period and is meant to lead to the next parts.
In short I believe you failed to scroll down. We all fail spot checks I suppose
Edit:sorry if I sounded a little mean spirited there. I will have to consider fixing that section to be more readable. But in short, melding grafts the weapon or armor onto you as if you used certain powers or spells. It's a raw benefit. The fluff about weapons attaching onto you is there to remind people that melding applies.