For the purpose of landscape photography where deepest DoF is desired
Why??? Think aesthetic qualities where what is prime interest is in focus and remaining is not... if you are not willing to accept that choice, then need tilts for MFDB or likewise for FF DSLR...
On film some shot landscapes with 4x5 which required tilts for largest DOF, because 4x5 DOF is very SHALLOW, however with digital MFDB it is with smaller sensors... where is larger DOF.
I see your point that 35mm based cameras give greater DOF, but... how many landscape photographers succeeded at that small format?
With todays MFDB sized sensors I do not see much point myself for tilts apart for very special applications.
I hope above helps.
Regards
Anders