I have the Ichorid lists, and could try to see if there were distinctions between builds, if you would like.
On topic:
In terms of Vintage, I've really tried to make this information as useful as possible. As I said in the article, Vintage is now the only format without regular major tournaments like Grand Prix or SCG $5ks to shape and push the metagame. As such, metagame perceptions play a bigger and more important role. Knowing the actual data behind the perceptions is a tremendously valuable tool. As such, I've tried to make this as useful and informative as possible. I'm providing more trend line graphs, more statistical analysis, and tracking greater amounts of data.
I see this data and these reports, more and more, as you can tell by both my tone and language, like financial reports you might see in the Wall Street Journal. I've even adopted the metaphor of "stock" to describe the rise/decline of various trend lines, and 'growth' and 'decline,' to describe the direction of those trend lines.
As a teaser, here is my excerpt on Dredge:
Dredge saw the most growth, and it increased by three and half percentage points, almost 40% growth. However, it's not clear that this growth will be sustained, as Dredge tends to fluctuate over time, as the chart below shows:

I perform the same sort of analysis for every major archetype, and I plan to continue to do so. I also do the same thing by engine.
I have fluctuated in the degree of detail and content I've included in some of these reports, for various reasons. But I'm clearly moving now towards providing even more detailed reports. I will disaggregated the graphs by engine in future reports, instead of reporting all of the engine trend lines on the same line.
Also, as I said, I've started tracking Force of Will and Time Vault, which I had not done in previous articles. And, I will probably track other major cards like Yawg Will and Tinker, and go back through old data to create trend lines for those cards.
I hope the community recognizes what a valuable resource this can be -- just as Phil Stanton's work a few years ago was so valuable.