There is the other way, and you're observing it yourself.
Underestimating Ukraine is the regular trope of the west for all of Ukraine's independence.
Ukrainians in mil-tech who interact with NATO regularly mention that the alliance is significantly behind on the modern warfare tech and the gap increases every day.
The tech and the infrastructure required for that is non trivial and is being built and evolves every day.
Most likely, for this specific case the civilian infrastructure was used for relaying traffic. This is one of the reason why Russia shuts down internet in the areas of deep aerial drone strikes.
Keep in mind that according to the reports this operation was planned for more than a year and was not something done without deep planning.
I have seen some comments speculating that the trucks relayed 5G signals to the drones.
This happens to have been a drone operation.
>But this wouldn’t have been possible without top-notch reconnaissance and especially communication
Ukrainian intelligence has been focused near-exclusively on Russia for more than a decade, and they likely have more human intelligence assets in Russia right now than the US has ever had.
>you need satellite communications for that (or somehow UA infiltrating RU’s network and using it at will, undetected).
another way of writing that would be "acquiring a couple dozen Russian SIM cards and pairing them with the kind of cellular radios half the planet has in their pocket right now".
No aspects of this operation require any particularly advanced technology or intelligence.