>https://blockchain.info/wallet/WALLET_ID?format=json
BitMarx, that's a great suggestion!  I've never seen that before.

I tested it with one of my Blockchain accounts that has 2FA enabled, and I got an error that said: "initial_error":"Authorization Required. Please check your email."

I then promptly received an authorization email and approved the "login" attempt -- but, still was not able to access a text version of the wallet.aes.json file.  (I just got the same error message repeatedly).

Then, I created a new Blockchain.com account, did not confirm my email address and did not set 2FA.  When I used the URL you mentioned, I was able to get a text version of the wallet.aes.json file!  Wheewho!

However, I then confirmed my email, and once I did that (even though I hadn't set 2FA) I was no longer able to get the wallet.aes.json file.

My guess is that this is pretty old functionality, and that it perhaps predates Blockchain.info requesting that people confirm their email addresses?  (That's just a guess).

 >This one should work: https://github.com/blockchain/my-wallet-backup-decryption-tool/releases
I haven't used this tool or looked at the source code -- but, this is not a common suggestion for cracking blockchain wallets.  The two most common tools are the 3rd iteration of btcrecover (definitely don't use the first version, it gives false negatives on some wallet versions) and hashcat.