BH,
Spin training was taken out of the syllabus because there were more people coming to harm doing this than from spin accidents.
I would wager a fair stake that the same could happen by 'relaxing' the rules regarding PFLs and EFATO training.
If it ain't broke don't fix it is not a bad adage.
The current rules allow apparently sufficient room for people to get adequate training as there doesn't seem to be a lot of evidence that stacks of folk get it dramatically wrong.
Looking at (fatal) accident rates it seems that the continued flight into IMC is still at the top and for accidents in general the league is lead by lack of general handling skills during take-offs, landings and fuel management.
FD