"Break monolithic apps into micro-services that are lighter weight and more easily maintained." Does anyone has any actual evidence to support this blanket cla

"Break monolithic apps into micro-services that are lighter weight and more easily maintained." Does anyone has any actual evidence to support this blanket claim, especially the "more easily maintained" part of the claim? My experience is quite the opposite. More separate processes communicating over unreliable network links there are, higher the likelihood of failures and mysterious performance issues. More succinctly, complexity of system goes as N^2 where N is the number of processes communicating over unreliable links (note, my use of the word "unreliable" is very intentional here).