Should Soraka get Buff?

Okay, before you hurry up and say no, and write an in-depth paragraph why doesn't need a buff, but please hear me out.

We all know she has a safe laning phase, with nice disengages, can stay in lane, with her only problem of being OOM. Which can be easily solved getting a little more mana pots, but overall her laning is terrific. The problem I have with Soraka is out of laning phase. After getting , then boots, it is questionable what to buy on her, she has limited choices for a support. First off you can't buy tons of health with her W taking 10% of her health, thus making the health I little bit useless when healing champions. Their isn't a ton of MR and armor items you can buy that will do well on her, because most armor items are for more being on a person, while for MR their may not always be an AP person on their team. Lastly, AP is the only best choice, although it won't make you as tanky for some sneaky assassins on you. After laning phase, its really hard to do, well anything. Of course you can heal people make them stay longer, but then you get low on health from healing. I know her Q can heal her but it seems more "gradual" as you need to find someone to heal off of. As it is mid game everyone leaving lane, it is hard to do much stuff, like after healing everyone. You need to hurry up and find an enemy champion to Q which only gives you about 100 health mid game. As I said her heal is more gradual and you can't heal up instantly, then you have to start heading back to base losing tons of XP. Closer to late game, it gets really hard to do anything really, as you are squishy with tons of AP. As I said for the third time her heals are gradual, when it is late game when a champion is on you, you can't do much except Q for 200 health then E away, where you can still die easily. Of course that will happen when you get caught, but it is easy getting caught as a support where you have to ward granting vision for the team, finding out where the enemies are. Although her teamfights are fine, where she can ult everyone, peel for carries with E and heal them. I know I have no right talking about balances considering I am Silver 1 but please, if you disagree please don't instantly dislike, please tell me why she is so strong/ or when she is strong at, or am I doing something wrong. Thank you for reading.