It's not rocket science :/
The UI is 100% clear. This is a non-story. As soon as you log in, top right shows "Show | all / all active / all but deleted".
It's actually quite worrying the poster is spending a lot on adwords, yet doesn't seem to understand the UI and instead suggests setting all your bids to 0.01 to avoid resuming deleted campaigns having a big effect.
Choosing [show = all] shows deleted campaigns, and if you select them all, you can resume them...
To suggest this is "intentionally deceptive" is laughable. Worrying this has been voted up to #1