blockchain is a technology which is achieved through the Bitcoin and it has been reduced by satoshi to this world so I believe no one will regret that at the same time Bitcoin will be always live in the crypto market.
So every uses in the crypto community never allow Bitcoin to lose it's name.
of course, Bitcoin is the life of Blockhcain, if Bitcoin doesn't exist then what does Blockchain mean? This technology is popular because of Bitcoin, and Bitcoin is famous for Blockchain.
Both BlockChain and bitcoin seems to be mutual beneficiaries. If BlockChain isn't there surely bitcoin could've never been successful. Same time if bitcoin isn't there blockchain technology wouldn't be known to the world. The success has now made more things get developed over the blockchain technology and bitcoin usage getting increase as a form of currency and on different transaction needs.
Every now and then things get updated, and in some way everything in interlinked and have dependence over other. Similar is with blockchain technology and bitcoin.