Yeah, previous system was much better. It allowed to use OPMs and natives as piggy-bank, but at least they had that money so did not go bankrupt. I do not know how those 5 loans are calculated now, but countries with significant development are not able to repay such huge loans.
As Byzantium I got 800 from Ottomans, fortunatelly they earn significant money from trade (still own COT or two), disbanded something and managed not to sink after first war (but I fully expect them to bankrupt after the following war).
In 1356 mod there is huge Yuan, with over 1000 development. After 1st war against some neighbouring horde they had to pay 2000 ducats of reparations and immediately went bankrupt.
Solving preceived "exploit" devs made game worse again.