Don't these rates equate to hardly any supply getting distributed?
Total = 1.625%
You're right, I guess there are something missing here. I remember tony said the 2nd round would distribute about 10% of all bytes.
Nothing's missing. It actually was never said that 10% will be distributed during the second round. In the previous rules, 20% were projected but the rules changed quite a while ago and now the distribution is much slower. The biggest one was (and will be) the first round. Next rounds will give more advantage to bytes' holders than to BTC linkers.