First, many funds don't do Series A's. That is their strategy. At the top of the spreadsheet are several funds that are mid, later, growth and private-equity stage firms (IVP, Warburg). Them not doing Series As has less to do with their Zombie status then them adhering to their strategy.
While there are other issues with the data as highlighted below, this issue of fund strategy is a critical one so wanted to highlight.
Also, picking short timeframes of 3 months or 1 month isn't a great test as funds have 7-10 year lifetimes. A couple of months doesn't make for a trend.
Again, we think there is value in highlighting this data as there tends to only be good news reported but just would caution against errant conclusions.
Notes: I'm one of the co-founders of CB Insights and our firm tracks this data. We actually help LPs (the investors in VC funds) identify VCs doing poorly or who appear to be the walking dead. But it's messy as hell.
More on that here for folks interested - http://www.cbinsights.com/team-blog/investor-analytics-zombi... (warning: part informational and promotional)