Well, that’s not the most charitable take on it, but I can see why you’d be unhappy.
I wonder whether the reason for it is purely because the repayment of the loans was planned to be done in line with distribution of SafeCoin (ANT) to shareholders, and the vesting makes sense for the shareholders. So lenders are ‘caught up’ in the shareholder terms for better, or in this case, worse.
Probably nobody was thinking ‘let’s punish the lenders’, but decisions were made for releasing tokens to shareholders, which have had a knock-on effect on lenders.
Edit: Bux has reduced vesting from 18 months to 6 months 
NFT claims for MaidSafe Shareholders and those part of Loan Agreement using MAID?
Well deserved longsuffering lenders and shareholders, and great move Bux!