Yes that's a good point, but I'm not sure if the bugs in QT etc. are inherent, i.e. we probably can fix 'all of them'. You're right to point out 'a' model should be a reference though.

Honesty though I fear in attempt to 'find' a model, we get forced upon us this FRP stuff for academic reasons of architectural purity. Despite QT's bugs, it mostly works just fine.