I bought up the subject because some people still make accusations the DS9 production staff/Paramount ripped JMS and B5. I maintain both shows are different, had unique stories, different way of story telling. DS9 borrowed a lot from Original Star Trek and Next Generation.
If you do pay attention to the credits of both shows, you would be seeing some same people working on both Star Trek and B5. There would easily be some knowledge of what one show was doing to the other. Rick Berman, Ira Steven Behr, Ronald D. Moore, probably made decisions to avoid making things resemble B5 too close.
B5 had telepaths for example, Humans and Minbari, for example, used the drama as part of an ongoing story. They had Psi Corp, one being played by Star Trek Alumni Walter Koenig. Did some very interesting stories throughout the series. DS9, although Star Trek had previously established telepathic species like Vulans and Betazoids, the subject for the large part was avoided, or had some fun the subject. Like the Vulcan Mind Meld not working on Gul Dukat, or Lexandria Troi sending some sort of Empathic signal to make DS9 crew members fall in Love with each other.
Another accusation that came up was with the Klingons once an enemy and became allies with the Federation being similar to Minbari once enemies then friends with Earth. That really annoyed me because the Klingon relationship was established with prior Star Trek long before B5 was produced. DS9 even had them turn Foe and back to friend again through DS9s' run.