That's what people don't understand. These radio companies are bigger than towers and transmitters, and content is more than local DJs. Most of the local DJs don't have digital skills, so specialists are needed. Also, while the trade media reports on the cutbacks, they never do the follow-up that these same companies often rehire some of the departed talent and staff. I personally know quite a few people who've been hired & fired multiple times by the same company. The cuts are done to meet annual budget numbers. A few months later, some of those people get rehired, sometimes in other cities.
What you don't understand is that iHeart and Entercom will NOT be hiring these people back, with the exception of isolated cases where a job happens to open up. They are not trying to make their brands 'better' and more 'local' with these cutbacks. They are trying to operate at scale with passable programming in an effort to reduce their expenses. Most of the local DJs I know of have acquired digital skills throughout the years, as it has become part of their job function. (i.e. iHeart just RIFd their Digital PD/afternoon host for a station in Sacramento). These companies are eliminating what they perceive as redundancies with technological solutions, as each brand slowly loses their spiritual connection with their listeners. The iHeart and Entercom centralized programming will likely not have dramatic immediate impact on the impacted brands; however, as they move to more generic and less local programming, listener bonding with these stations will gradually erode and the 'local radio' stations will be much more vulnerable to Spotify or Apple or whomever to compete with them for a nationally delivered radio experience (beyond straight streaming). These radio groups are slowly giving away one of their main benefits. (With that said, I fully understand that these groups are over-leveraged, and losing advertising to digital options, while trying to operate during a pandemic. They are in a tough situation, but they are not improving the impact of their programming)