I created a wallet on blockchain.info.
Why is blockchain.info is not listed on "Choose your Bitcoin wallet"? Is the blockchain.info wallet considered safe?
Web wallets in general don't really make sense by bitcoin principles.
But to not make this into a service review: the wiki is managed in a git repository at guthub. Discussions happen there before changes are made. One such discussion happened here: https://github.com/bitcoin-dot-org/bitcoin.org/pull/663
Note that there may have been newer pull requests in the meantime.
Edit: per request, the gist of above link, the complaints about bc.i are:
Bugs and losses: BC.i has suffered from concerning issues during the past year (e.g. iOS denomination bug, weak key stretching, sizeable number of users losing funds, and more issues I haven't verified yet)
Backup/Password Security: BC.i hasn't adopted security features which are slowly becoming standard in other wallets (e.g. BIP32, random passphrases, backup on setup, rotating addresses, 2FA by default).
Transparency: Source code of the app has been reset or not updated repeatedly, making bitcoin.org often relay the false claim that the app is open-source.