No, I find the controller the ideal way to play Thief games regardless of whether it's for VR or not. I game and compute from my couch with a wireless KB/mouse and a DS4Windows Xbox controller emulator setup. For Thief games, I use the Xpadder controller scheme someone posted on this forum almost 10 years ago, originally for TDM, but I use it mostly for Thief 1 & 2, and it feels nearly perfect. The trick is to get what feels ideal for you in the re-mapping. I saw one poster here implying he spent an entire day getting his controller configured just right for him and TDM (I didn't like his cfg though).
However, the native TDM controller feature has analog movement at its lowest that's faster than that for the TG/T2 games (adjusting in_padDeadZone mentioned above didn't help). I like to creep.