Flamestrike
Legend
Shrugs as I said they just like using original actors. Tem looks his age there.
Interestingly Temeura was 41 (Bobas current age, not accounting for Sarlacc scarring and and Kaminoan clone tech shenanigans) in AotC:
They've played up the Sarlacc stomach acid scarring as being the cause of his more weathered look (and to cover up for the fact he's nearly 20 years older than he should be!).