One primary aspect is that they're abandoning the Radio.com branding and website because they're much more than just "radio" today. Toward the bottom of that news item, there are mentions of podcasts, on-demand and interactive technologies. Elsewhere it points out things like gaming and distribution.
I also found the snippets below to be quite telling. Entercom is just the latest company to move away from radio or radio-themed branding:
"Entercom is the latest company to rename itself to reflect an expansion beyond its broadcast radio roots, following in the footsteps of iHeartMedia (formerly Clear Channel), Urban One (formerly Radio One) and Uforia (the brand name for Univision Radio).
Since merging with CBS Radio in late 2017, Entercom says it has evolved into a “scaled, multi-platform audio content and entertainment organization” with positions in broadcasting, podcasting, digital, network, live experiences, music, sports and news."