I think one of the reasons it's not usually included in the standard Foodcoats lists is that it makes you have to do somewhat awkward things with your agenda suite to include. You either have to run 2 1-point agendas, which you usually don't want to do because 3/1 agendas are usually a pretty large tempo hit to score, or you have to use influence on another GFI, as you did. Also, running a 1-point agenda in a deck with three 3-point agendas means that usually the single point from that agenda is going to be going to waste, since you'd have to score two 3-point agendas to make an even 7.
Another reason (and this might be the biggest) is that the deck really wants to score two 2-point agendas and one 3-point agenda, since this means there are fewer times in the game where you are exposing your agendas in a server. Ideally, you want the runner to be the one scoring 4 agendas, not you. As I mentioned above, the only way to do this is to also score 2 of the GFIs. Otherwise, you have to score three 2-point agendas on top of it. If you end up scoring two 2-pointers and a 3-pointer anyhow, the point from Haas is useless. At that point, it's better to have simply used those clicks spent installing and advancing Haas to manually make the server you created with it.
I think these days if I was going to throw 1-pointers in Foodcoats, I would want Chronos again. It feels to me like the two decks to beat are probably the Whizz deck and Hyperdriver Kate, and Chronos can almost win the game if timed well against these. Still not sure if it's the best idea to include it (for the above reasons), but I think right now it's probably better than Haas.