The "can't be audited" argument is weak when you consider a few things...

1) Exactly 100% of bitcoiners run a node and call it a day. Exactly like you audit with Monero. No Bitcoiner is taking advantage of it's transparency/simple math and scrutinizing the whole blockchain to make sure everything is correct.

2) AND an exploited inflation bug would be equally catastrophic if it happened to Bitcoin or Monero. Once it happens it is too late. There is no good solution. You can't undo it without hurting users.

So, who really cares if you can see it. You will know it was exploited directly with Bitcoin, or indirectly with Monero, but nothing can be done about it. The damage will be done.