This really sounds like bs to me. Companies knew that all the time. BF4 released when, 2k13? Do you think that 4 years ago, lawyers didn't know about this? Well...
Also, modern combat games release all the time. What about Far Cry 5? Nearly 100 modern weapons ingame. Also Humvees and stuff. It's just about the money. They want to sell you a license. And big companies are able to afford it. Even to lock it (NFS held the Porsche license exclusively for at least 6 years.)