Nothing is amiss..
When u choose the BASIC plan, 10% of your RA balance or FRS, whichever is lower, will go into the Life pool.
Then from age 65 to 90, your monthly payout comes from your RA. At age 90, your RA balance reduce to zero and henceforth, all future payouts will be paid from the 10% you had put into the Life pool at age 65.
This is why, when you die early under the Basic plan, your bequest amount is much higher than compared to Standard plan.
Good luck to those who choose Standard plan and die the next day...your dependents will get very little.