So I let it go at that time! I did however make a formal complaint - which later tied up a chunk of someone's time investigating!
You're on the right path... the more reports and formal (legitimate) complaints go in from pilots... the greater the chance that problems will be addressed. Otherwise, the person responsible for responding to the reports is up against the wall come the day it goes bad... not the ATC or pilot who failed to report.
"Letting it go"... and nothing will change.
Prop up a failed system and it will stay a failed system.