I think that is a telling line. There are certain decisions that can be improved with data, and many others where data can be your only criteria, but, in business, there are also a whole class of problems where data is basically a pipe dream.
Don't get me wrong, I am not saying that wanting to make decisions with data is wrong, but, there is a lot of what goes into an investment that is "unknowable" in the sense that your "data" is very sparse or anecdotal, or, you simply have more unknown unknowns. It is this fact that causes many VCs to invest in good teams, that they feel will be able to handle the uncertainty, rather than investing in purely data backed opportunities.