I will concede that the term "whole vitamin C complex" is misleading. It would be better to state "Vitamin C with all the supporting compounds usually found in nature."
When it comes to ascorbic acid, I submit that naturally derived ascorbic acid is superior and more stable than man-made ascorbic acid. Funny how that works when science creates supposedly identical or mirror molecules but still fails to measure up to nature.
Regardless of the source though, I do not think ascorbic acid by itself is nearly as good as getting vitamin C from nature. I recognize that there are some vitamin C therapies, such as the one you mentioned for heart disease as well as intravenous vitamin C for cancer that have proven to be beneficial, and could be worth pursuing. However, for general health I would certainly opt for natural vitamin C from fruits, juices, vegetables and perhaps supergreen foods powder. I do note, however, that the outstanding vitamin, mineral and nutrient product I take contains 600 mg (1000% of RDA) of buffered calcium ascorbate. It also contains a veritable wealth of phyto nutrients and anti-oxidants and thus is likely to be much closer to getting vitamin C from nature than ascorbate by itself.
No argument here on the benefits of Vitamin C. I obviously get lots of it on a regular basis from all sources combined.