Its hard to dedicate people to less popular/profitable tasks when recruiting takes 6 months and expects post doc level of CS knowledge.
This is an excellent point here; I should have thought of this myself since I even went through one of their ridiculous phone interviews.
You don't need someone with post-doc CS expertise to do mundane, basic coding, and someone that advanced wouldn't want to work on the unpopular, "boring" tasks anyway.
It's quite possible there's not that many people working on it now.