Unfortunately, that is just how those carriers route their shipments. Fed Ex air shipments, regardless of where they are shipped from, must go thru their hub in Memphis, even if it is only going from Los Angeles to San Diego. All UPS Ground and Fed Ex Ground coming out of California or Arizona going to my home in Northern Nevada are routed thru Sacramento, even if it is closer to route thru Las Vegas. Oh, and anything coming from Las Vegas quite literally goes past my house on a freight truck so it can be sorted in Reno.
Seems like these kinds of issues may be becoming more common lately. Wonder if it's just lower quality hires and/or some process or policy change yielding more of such.
My particular issue from circa mid-Feb has kept resurfacing over the last couple months, and I've had to contact them 6x total so far, including 3x after they already promised and seemed to resolve it for me. They apparently kept resolving it some wrong way, but hopefully, this last, most recent time takes... although they ended up giving me a significantly greater refund (on all the extra charges) than I was asking/expecting, so who knows?
_Man_