In your world (no eWallet), you have no diversification. Your physical cards are your only means of accessing your accounts, which makes them single-points-of-failure. If you lose your wallet (or an individual card), or something's stolen, "you will be lost". You have to report your cards stolen (or broken), which causes your issuers to cancel them, and you're dead in the water for the period of time that it takes all of your issuers to ship you replacement cards.
With an eWallet like Apple Pay, your digital cards are a second means of accessing your accounts. To me, that's diversification. So if your phone breaks or is lost/stolen, in the time it takes you to resolve that, you simply go back to using the physical cards that you had stored safely at home. Driving home and getting your physical card is inconvenient, but I wouldn't qualify that as "you will be lost" (as I would when a physical card breaks or is lost). Since the PAN of the digital cards are different from your physical cards, the digital cards can be cancelled without any effect to your physical cards. Once your phone situation is resolved, you can immediately reenroll your physical cards (and again store them away safely at home) and start using the digital ones. There is no wait for your card issuer to physically ship you anything, because they don't have to.
And FWIW, my OP to you was referring to Apple Wallet Passes, not Apple Pay. If my iPhone craps out and I'm unable to produce my Wegman's frequent shopper card, or AAA card if I need road side assistance, etc, etc, etc, there are easy ways to get around them without even having to drive home and get the redundant physical card. Having the Apple Wallet Pass just makes those processes faster.
First, As the apple wallet is nothing than a copy of your physical card I doubt that you can at the same time report your lost or stolen non-physical CC (=apple wallet) and at the same time still use them in a physical way (=physical CC). So the apple wallet cannot be a redundant security at all. Just the opposite: if you loose ot it gets stolen, younhave to block the whole iphone for security reasons.,
Second, if your wallet falls to the ground by accident you just take it back in your hands - but your iPhone might be broken.
This is far more often the case than wallets being stolen. Surely 100-1000 times mor often. So far for real-life risk.
Third,
Even a wallet falling will much less often be the case than a phone falling because you never will communicate with a wallet or surf with your wallet in the internet or hear music while jogging and so in...