To be honest, that hasn't bothered me too much, as they at least approached the whole UDH thing pretty tactically and successfully - get loads of MTB bike manufacturers to use their Universal Derailleur Hanger system for Eagle AXS, then drop a new RD design that incorporates a UDH (so only works on UDH frames), and now move it over to gravel where only some bikes have UDH. They haven't brought it to road at least, which is a good thing. We might end up there in a few years time though. Who knows.
Yeah, it will/is creating a situation where only some bikes are UDH/frame only and therefore only they can have the latest and greatest of SRAM Red XPLR or the Eagle Transmission groupsets. I guess that kind've nerfs the 'Universal' in the UDH name lol.
To be honest, that hasn't bothered me too much, as they at least approached the whole UDH thing pretty tactically and successfully - get loads of MTB bike manufacturers to use their Universal Derailleur Hanger system for Eagle AXS, then drop a new RD design that incorporates a UDH (so only works on UDH frames), and now move it over to gravel where only some bikes have UDH. They haven't brought it to road at least, which is a good thing. We might end up there in a few years time though. Who knows.