Assuming 20% of the current circulating supply (9,103,576 SBD) is burned, the debt ratio will decrease from 11.3% to 9.4% (below 10%), thereby enabling the resumption of SBD issuance. (See table below)

Unfortunately, that is not the case.
There are posts here and here that describe this in detail. Since the haircut price also decreases after burning, the virtual supply remains the same, and so does the debt ratio.
As I have already described here, we would have to burn more than 20% to really notice any effects.