No, because these things don’t isolate us from each other. You have a number of couples in the photographs that are close physically yet miles and miles apart.
The second noteworthy distinction is phones' ability to solve many different problems as well as provide many different willful distractions in a very accessible manner. A tool that can be both productive and entertaining requires a higher amount of willpower to use productively without succumbing to the desire to use it for entertainment.
Some of the most productive coding I've done has been in places where there was no internet to temp me with distractions.