Not all requests end up being fulfilled, probably for a couple reasons. First, there are a lot of different kinds of logs out there, and not enough time to make connectors for them all. They have to prioritize the ones that seem likely to get the most use (read: the most requested) so some more obscure ones may not make the cut.
It's for exactly this reason that I think my feature request is important. By providing functionality within the product that allows customers to create their own connectors (via some type of dev studio) and share them with the community it will help get more connectors into circulation faster.