Is ruins restoration activity in Legacy just broken?

What the hell is going on with these percentages?

70% success rate gives me failure after failure after failure. Every random event gives failures

Its practically impossible to do anything and even if you are lucky enough you to pass, you'll just about scrap a level 1 (if another random event you have no control over doesn't push you just under the level 1 pass at the last moment costing you another 2k gold because screw you I guess)

Something is clearly broken here and needs rebalancing