If the piers are solid grouted, attached to the beams and 2" slab to prevent "walking" in a seismic event, and the 2" CMU slabs are buried sufficiently to prevent "walking", being sized for the bearing loads seen, I see no problems with the connection other than untreated wood to concrete contact.
From the picture shown, the 2" slab does not see much if any bending, the load from the CMU blocks being distributed to the soil structure through the 2" CMU in shear at a 45 degree plane - no bending. No problem for me.
However, the wood beams appear to be another matter. The one on the right appears to be deteriorated.
Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask
Is there a specific defect that brought you to this issue (other than the fore-mentioned unprotected timber) or is it one of those "Id like to have my house inspected for various reasons". Maybe settlement cracks showing up inside?