"For me, a light rail system should be categorised as such not because of its name, but rather because of its characteristics" - In my previous comment I stated that this part of tram tracks with certain differences is identical to the rest of the network. I suggest visiting this place or watching some cabview rides.

" it leads me to wonder why a planned line of the Kraków Fast Tram has been labelled light rail for more than 10 months without protest" - you should pose this question at the foregoing Fast Tram section, not here. Plus you are generalising an idea based upon 1 example

"This demonstrates inconsistency not only between various light rail systems globally, but also specifically between szybkie tramwaje in Poland" - as far I as know, those have consistent tagging in Poland

"I suggest this line's category should not be changed until a true concensus is reached" - that's why you changed the tagging of this section without any discussion, lovely

If you were to continue discussion, please join the topic in the forum (https://community.openstreetmap.org/t/railway-light-rail-w-polsce/111729