But your link doesn't show that, does it?
What is says is:
-Immigration helps drive economic growth, and the EU will be able to work with new member states to tackle organized crime and trafficking.
-Cheaper labour is good for the economies of richer European nations (debatable since it creates unfair competition with our own poverty classes), and it is better for them if companies relocate to Central Europe than to India or China (I don't see the benefits for the company per sé, but for the Central European countries, the benefits of this low-wage thing is huge. It means more people have more money to spend, which means wages must then go up (if the market is properly regulated), causing lower-wage people to become wealthier.
-The richer member states gain more from being members of a large single market than they pay out in transfers to the poorer countries. This is true as well, of course, but is mostly a benefit added in that list to sway wealthier countries into agreeing to letting countries like Romania (which will cost the EU billions of euros) to join anyway. It's an argument meant to show the wealthier member states that they'll be getting at least something back for all the money they're transferring to poorer member states.
Basically: You're just screaming 'Forrinners Dunnit,' and citing texts that could creatively be held to prove your point, but make more sense when actually used to oppose your point.
Face it: 'Forrinners' are helping Romania. I don't know if Forrinners should, mind you, since the EU is already dangerously wobbly, but they are.