USB Mini also had a design flaw which caused the port to wear out prematurely (after only about 1,000 insertions), which was why the industry transitioned to USB Micro so quickly (which is rated for about 10,000 insertions).
According to the link, the 1000 number is related to the initial USB mini design with flat sides. It got changed to the kinked sides which we all know and which has... 5000 insertions. Still not a lot, so the argument is the same.
I've snapped more micro-usb connectors than any other type that I can think of, which might be why i view them as not being very durable, but I've also used quite a few more devices that use micro-usb than mini, so it's not exactly a fair comparison.
In either case, USB type C seems to be mostly better than either.
https://electronics.stackexchange.com/questions/18552/why-wa...