The article describes Lilly as a 'medieval' Astrologer. Lilly lived in the Seventeenth Century which is hardly medieval LOL.
Unlike a lot of Astrlogers, Lilly's definition of VOC is a little bit stricter. He says that if the Moon will apply to an aspect with another planet, even if that aspect is not perfected until it has chanaged signs, it is not VOC. I've seen definitions that require the aspect to be perfected within the sign, for the Moon to not be VOC.
There's also a subtle difference, which may or may not be relevant. Lilly is judging horary charts on specific questions that have been asked. In those charts he is saying that Moon VOC is an indicator that success is unlikely. He is not making a general statement about decision making.
Presumably the decisions AG is referring to were never a subject of a question at all. So does it make any difference whether the question is asked or not - that is Moon VOC is only an indicator that success is unlikely in decisions where the decision maker has felt the need to consult an Astrologer.
Now I'm not advancing this as a statement about the real world, merely wondering if the symbolism only applies in particular circumstances.
I must admit that personally I don't take any notice of VOC Moon in any decision I make. So in that sense I'm with AG
Edited to add:
The statement attributed to Lilly seems to be at best second hand, as Lilly himself quotes it as a useful aphorism for dealing with Seventh House questions (which does include business contracts).
Of the signs mentioned, Sagittarius is ruled by Jupiter but no planet is in exaltation. In Pisces Jupiter rules and Venus is in exaltation; In Cancer the Moon rules and Jupiter is in exaltation; in Taurus, Venus rules and the Moon is in exaltation. The only reason that Libra is left out appears to be because Saturn is exalted there and would not usually be seen as favourable to anything.
*sigh*