Lets not labor under the impression that Epic invested resources in fixing these issues purely out of the goodness of their hearts.
The success or failure of the recent Sim City game was hardly EA's number one concern. Fortnite, however, is probably extremely important to the folks at Epic.
I'm not defending EA here, but it was definitely in Epic's best interests not to piss off Fortnite's player base given that there are some other, ahem, similar titles on the market right now.