destinationsky, "The biennial flight check" isn't a check.
Part.FCL Revalidation by Experience requires 1 hour with an instructor; it can't be passed or failed and it can be used to gain additional skills - whihc it wouldn't be able to if fundmanetally cghanged to have a rote syllabus as you suggest.
You're solving one alleged problem by minimising the value many people get form the current Reval requirements. So not that simple.
Regarding the current culture of coming down hard on infringers; at first sight it all seems reasonable, but there is a disturbing number of stories out there that suggests a "Just Culture" is not applied well. It would be great to discuss this objectively, but it doesn't seem possible to do so online as too many people immediately get defensive or high-handed. Not all of them pilots.