Our Ahmad Yani class (ex van speijk class) comissioned in the late 60s by the dutch, and currently still in active service within TNI AL.
They are about 60 years old.
As for asagiri class TNI AL may consider them pretty good and younger than our AY class, and if upgraded will make it more capable, yes the platform/ship maybe old but with modern sewaco will make the ship cabaple, our old ship also got modernized with R41 btw.
Moreover previously there is previous program about Interim ready frigate, to obtain maestrale but didnt materialize, atleast this show that TNI AL eagerly wanted new asset even if old, previously also reported about possibility of getting chinese old ship amd now asagiri class.
And for asagiri class maybe packaged as a deal to sweeten somthing.
A additional bonus if we buy new mogami?
Asagiri class won't give AL game changer capability. But if its given free then I think its good for TNI AL to operate it, rather than not getting it. It will increase hull number of AL's large combatant, that have more "ocean going cabapility". Old but, It still can kill submarines or ships.