To be fair even in January the Epic Store only actually had 10 released games & it's not going to be an openly available platform for developers until summer, my guess it they didn't even see a need to prioritise work on that feature until last month (Not like there isn't far more important stuff they're working on).
Obviously, since Epic store is run by the guy who made Steam Spy, the most popular analytical game development tool there is, one can assume he's taking most of the feedback on what's required from the developers as they require it.