Timo,
That is 100% false. And you know it. No, all TV is not dumb, lazy and stupid. All plots in all shows are not equally bad, or all with no explanation. Likewise, all novels, short stories and plays are not the same. They arent all dumb, silly or poorly explained. I dont understand your tendency to defend Trek no matter what. As if it is your team, and you just have to carry water for it and no criticism of it is ever justified.
Picard Season 1 is what 9 hours long? They cannot possibly explain every minute detail on screen. We have no clue whether or not the details that have been omitted were not considered. In some cases details may reside in cut dialog, notes or, as you suggest lazily not stated or considered. If you can really find an example of a show/movie that gives reasons for all the small questions that people may ask, please offer it up.
My comment above does not imply that there is not a quality consideration in omitted details and while I enjoy the modern Trek, I agree that there are details that I would like to see revealed or in some cases revealed as something else entirely.
The details about Soji, Dahj, Jana and the other male android's biological bodies may be revealed in some way when they discuss transferring the mind into the golem. Others have postulated that they are all biological but chose to look like Data. But why do we need more details. It is fantasy sci-fi. Some of these androids have positronic brains ( an absurdity in reality) and flesh, and super strength. Why do we need a made up in world science / fantasy based reason for this detail?