Yes, but I see people getting confused that the original bitcoin wallet is bitcoin.com or blockchain.com. Because this is what google returns to them. I agree with the decentralisation, but it isn't centralized if the bitcoin developers made the wallet. It wouldn't be closed source neither.
Yes, it's a shame that the owners of those 2 domains are supporters of Bitcoin clones and unsafe wallets. But that's just because people obviously click the domains containing more known terms like blockchain, bitcoin, coinbase etc.
Are you basically proposing an "official wallet" as in a "bitcoinwalletofficial"-like website? Any domain - or software - could be changed at any time in the wrong way. Even the said "official" wallet. The thing is, there should be alternatives. Bitcoin.org gives you an alternative for every use case you may be needing. Having a single "official" website/wallet is bad from a decentralization PoV.