My layout has two sections -k track and c track. Due to cost and unreliability of turnout motors, I have reduced the number of motors to a minimum. So where we have a station exit track, a passing loop or a "backwards" facing siding there is no motor and a the point is set usually against the main line and runs as what I call a trailing point, To me this works fine. However I was reading a Viessmann instruction leaflet and they seems to want to electrify absolutely everything regardless. now I know they are in business to sell things like decoders etc but is my method regarded as acceptable practice?

I some of the station layout designs I'm playing with there are also some turnouts which only route a loco one way where I don't see the point of having a motor and plan on just keeping the turnout in the one position, and having the locomotive just cut through. In my case, where a decoupled loco runs past the turnout, then back along a track to get to the other end of the train (in an end station).

So if that's not a good practice I'll be interested in learning why it should not be done.

Great point on the power delivery - a beneficial side effect of Märklin spring-loaded, 3 conductor track - no electrical impact on driving through the points (especially with return loops).

My rule is that if I can reach it easily, it doesn't need a motor. I have about 4 that still need motors.

I also don't have any motors for the trailing points in my hidden stations. I have also removed the hand levers so that the points don't spring back to position and make all that extra racket.
All visible points have motors though but that is also because they all require motors anyways due to the design.