Well yes and no, now you think it is fine to censure people who are only interested in correcting incorrect statements and fallacies, if that dumbing down and misinformation is your goal, well done, you are getting there.
I think he was only concerned about the atmosphere in the forum. And by the way, I think your statement was wrong. With picture styles only, you can't correct some of the special characteristics of some cameras.
Picture Styles does have some limitations, like getting those settings applied to RAW files in third party software, but it is very powerful, with six HSL primary colour adjustments, there isn't much you can't correct for, certainly the differences between a 5D and a 5D MkIII are no issue.
However, basic dual illuminant profiles are much more robust, and if colour accuracy is your goal then the only way to go. Sure there are limitations even to those kinds of profiles, but none that anybody here is ever likely to run into. It might be nice theorising about Bayer array filter interaction, but the truth is cameras are capable of capturing the range of light we can see and we are capable of profiling that data, however "inaccurately" it might have been recorded, to be an accurate representation of the colours we see. If 24 patch dual illuminant profiles don't cut it, one, you already know this stuff and two, you know you can use more patches to create even better profiles.
People might dismiss this post, I don't really care, but who amongst you would not do a WB, or profile your monitor? Well profiling your camera is just one step further down the road to consistent and accurate output. I don't understand why that is so antagonistic, or why it isn't understood to be a normaliser just like WB.
Image this scenario, shoot a wedding with a 5D and a 5D MkIII, WB is set to 5,000 on the 5D and Auto on the 5D MkIII, when you come to process the images the dress colour is all over the place, would you not normalise the WB? Well if you take 2 minutes to profile both cameras first not only will WB and dress colour be 100% consistent across shots, but also the ribbons and skin tones will match. Well that is how I work.