But as others keep telling you, it isn't EASA making up the inspection/overhaul periods it is the aircraft manufacturer and it's all stated (and therefore required to be complied with) in the Maintenance Manual for the aircraft.
Doesn't matter where the aircraft is registered, the Maintenance Manual has to be complied with - if you don't want to replace the seatbelts every 10 years, sell the Cessna and buy a Piper.
McCauley and Hartzell mostly have 6 year overhaul periods on their CS props regardless of hours (how do you know what the internal condition of the hub is?) - McCauley have the same overhaul period on their fixed pitch props too. Sensenich FP props were 1000 hour overhaul period but extended it to 2000 hours.
Cessna stipulates in the MM a 500hr mag inspection (note 500hr service NOT overhaul) - Piper don't on say the PA28-161 - it just says 'replace or overhaul as required or at engine overhaul'.
So don't blame EASA or the CAA about the cost of maintaining your aircraft - have a go at the people who built the aircraft and its components.