It would be great if this could get fixed. Handling all Debian packages through apt - even those not coming from repos - is the most user- and especially beginner-friendly way there is. This way dependencies are automatically handled instead of dpkg just spitting out errors the average beginner will have trouble with understanding. While there are many guides online about how to install .deb packages and while most beginners probably will use the graphical tools anyway coming from Windows where you install things too with a double click, official acknowledgements of this being a thing would probably still be appreciated.