If you live close enough to the stations, that is all Dish will offer you. It all depends on distance, and what antenna you are predicted to actually "need." For those farther away from the stations, Dish will spring for the outdoor antennas, out to the point where you are predicted to not receive a reliable OTA signal. For subscribers beyond that point, Dish feels they can justify not sending the antenna at all. (I still say that any OTA reception is better than no OTA reception at all. Also, those prediction models can be unreliable. Therefore, Dish is likely denying antennas to some subscribers who could actually benefit from an antenna, while installing them for other subscribers who cannot actually get the signal.)
Years ago, Dish sent me the free indoor OTA antenna due to a dispute with my local Fox affiliate. (This is the same station that is currently blacked out due to the Nexstar dispute.) That antenna did not work for me, near the outer fringe of the Cleveland, Ohio market. However, it may work for someone who is close enough to their stations. (The antenna did work for some nearby locals that I can receive with just about any type of antenna, but no luck for anything farther away than that.) I still have this amplified indoor antenna that Dish sent me. In another thread, I offered to send it for free to anyone who needs it because they are missing local channels on Dish. Just pay a small amount for shipping. That may be a lot less hassle than waiting on the phone (or in the chat queue) to try to get a free one from Dish, while they are still swamped with people calling them about this dispute.