I strongly agree. That is the reason that the score decreases after a certain age. They need young paople to balance their population. The government doesn't want to spend their whole money on sooner retiring population. I know that 33 is not old age. But they made this cutoff according to the age of their current population. If you are such a strong candidate, they will give you points considering other factors. But the major reason for immigration program in Canada is because of their aging population..
Canada wants young and educated immigrants. Canada has aging population. They want young people who can contribute for longer to the society (i.e. paying taxes to the govt. , helping meeting labour demands etc) rather than giving more points to older applicants who will retire early as compared to young people.