‘You’ don’t know the answer. Please don’t project (or as the Russians say “mirror”) your lack of knowledge onto others.
BTW, I know this will sound like heresy to Jae, but if the unbonding period is lowered from 3 weeks to 2 weeks, the bonded ratio will increase. When you go to interview at a Wall Street firm, one of the questions you will get asked will be “Explain me why time is money”. Time is indeed money and the longer you lock up money, the more you have to compensate people for it. This is called a “term premium”. People want more liquid instruments, not less liquid ones. By increasing the lock up time, you have to increase the interest you pay them.
For that reason, Cardano with its zero lockup staking can get 70% bonded by paying only 3% in inflation. If for example, ATOM was to increase its unbonding time to 4 weeks, bonding ratio will fall to sub 60% as many investors will find even 20% not enough to compensate for the extra week of lockup. The issue here is the volatility of the ATOM token which is north of 100% per year. 20% doesn’t nearly compensate for that type of volatility. If you let the system run as is, inflation will be trending toward the 20% upper limit over the long run. The only way you stop this devaluation of unstaked ATOM is by either limiting the max inflation or reducing the unbonding time.
As is presently constructed, ATOM inflation has zero chance to go back to 7% if market forces are left on their own. Even 20% is not enough compensation to lock up a 100% HV token for 3 weeks.