Should the payout buffer grow very large (months-years of 1% payouts) I will solicit bondholders opinions on whether they want stable 1% payouts for a very long time, a lump sum payout, or temporarily higher coupon rates. This depends on Nefario's opinion of exceeding contract payouts, of course.
Generally speaking, doing something that is more favorable toward the other party of a contract (i.e. paying out extra dividends to bondholders) and less favorable to yourself (i.e. Obsi keeps less money) is totally fine and would not be considered a breach of contract.