ACR and LrC's Develop module are the same raw converter engine and now look alike. They now use the same file system folders to store presets and profiles. So showing them as different items does not convey the reality.
For users of the absolute latest, that might be true. But not everyone uses the absolute latest version, as the newest model camera or the new software capabilitie are not viewed as necessary to everyone. While I use LR, I do not consider myself a Photoshop user, so keeping the two RAW conversion capabilities distinguished from one another serves readers better than smashing the two together.
We had a very recent discussion of DPP mention 'Transfer to Photoshop', and someon pointed out that could be used to send data from DPP to PS, but not LR.
Adobe Camera RAW (Photoshop)
