if high resolution is needed, then spherical stitching is totally usable for architecture.
Well, yes and no. Once this question came up here, and I represented the above position. Several posters (MFDB owners) explained, that the difference in preparation, shooting and post processing effort is decisive in the professional work. I can afford working long, sometimes several hours long on a pano, for that is a hobby, but professionals can't afford that. I become convinced by their considerations.
IIRC, there was another consideration: that the client is often present at the shooting and wants to see the result immediately.