There's unlikely to be a 'good' reason unless they overspecc'd on motherboard / RAM and went cheaper on a 12th-gen CPU.
However, there are a few things that might be useful - 13th-gen will bring more L3 cache, which helps in a number of workloads (including especially games), more E-cores per SKU which will contribute to MT performance, and overall higher quality bins for higher boost clocks and memory speeds.