After reading over her abilities, unless I'm missing something, you don't have to link with someone at level one. Which means a lot of options from the champ, if you are up against a dominant lane combo then you can link with your support right off the bat to make up your own strong lane combo. If not you might want to link later on with that fizz that is 6 and 1 so that he gets even more damage and a safe delivery system with your ult. Or maybe linking with a tanky/cc heavy jungle or top in order to help them initiate or to protect you. Seems like a lot of neat stuff you can pull off with it. Also if you don't need to use your link for early laning then you don't have to worry as much about the dc complaint because if you get a mid to late game DC you are most likely going to lose anyway with or without your passive and ult.
edit:
When you think about it, they don't intend for you to always link with your support. Linking with a nami/soraka for instance would make the CC on your ult useless because you don't want to be throwing their squishy ass at the enemy during team fights.