Not surprising when taken in the context of all of the other strategic changes UPS is making. Hub closures, layoffs, and other major cost adjustments.
The last mile delivery is too expensive with Teamsters at the wheel. They will retain the option of delivery the last mile themselves when it carries no incremental cost because a truck will be in the area.
Logistics is a well thought out discipline and is supported by lots of software. Little need for AI to generate any new numbers.