The principle of using shift is not fulfilled without a retrograde shift or tilt of the camera back. This is illustrated in the church shot; in terms of perspective the appearance is jarring. What should be happening is the camera (film plane) shifted to compensate for the shift at the lens — something the Hasselblad Flexbody does well, but which view cameras do superbly (one of very few instances where I would recommend a view camera explicitly over other formats). It's fine to move the lens up to take in more of the taller parts, but unless there is a corresponding correction at the film plain, the effect is compromised, hence the reason view cameras were once the go-to device for architecture.
I have used a PC lens on the smaller 35mm format since 1994, chiefly in landscape for correction of viewing angles and levels (tilt + shift) and not at all for "correction" of verticals because of the limitations of not having an adjunct correction at the film plane.