Bad system design. Blamed on customers. Typical.
The systems were designed LONG before 1.6 gallon per flush toilets were invented (not enough to flush junk down the slightly inclined waste pipes) or before wipes were invented. Hardly a system design problem - the requirements changed.
how many centuries did we live without wet wipes for butt use? now people just gotta have them. silly, waste of money in many ways.
Not if the system was built before wet wipes were invented.