I'm an electronics guy too (if you count firmware :P), and I've always found the spring contacts on TRS jacks to be hit or miss. It's a big receptacle with lots of room for lint to get into, the plug rotates, and it can experience some big forces on drops or cable tugs.
Most jacks do just fine, but having the springs eventually wear out on some device or another wasn't uncommon for me 6+ years ago. Not having to worry about whether the jack is going to suck or not on a given product suits me just fine. Having it attached to an adapter means I can easily swap it out if it wears.
That said, some of the sibling comments are reporting wear on USB-C receptacles when used while running... The mechanical design of the Apple Lightning connector seems to me like it'd be more durable, since it's tapered and doesn't have that center alignment thing. But maybe the contact springs of Lightning wear out faster as a result? I haven't seen any data on this, just speculating.
Most jacks do just fine, but having the springs eventually wear out on some device or another wasn't uncommon for me 6+ years ago. Not having to worry about whether the jack is going to suck or not on a given product suits me just fine. Having it attached to an adapter means I can easily swap it out if it wears.
That said, some of the sibling comments are reporting wear on USB-C receptacles when used while running... The mechanical design of the Apple Lightning connector seems to me like it'd be more durable, since it's tapered and doesn't have that center alignment thing. But maybe the contact springs of Lightning wear out faster as a result? I haven't seen any data on this, just speculating.