was bitcoin client always called bitcoin core? NO
who changed it....blockstreamcore
even blockstreamcore know that the segwet they created is no longer bitcoin....it is bitcoin core( MUTATED ,VIRUS INFECTED SHIT).FACT
btc ticker is now, bitcoin core..FACT
It was renamed for good reason bitcoin core is not bitcoin it is a client called core on the bitcoin network same with litecoin their client is called litecoin core
and blockstream do not own core they just write and submit code along with 1000s of other developers and consensus rules determine what gets merged
if you want i'll start calling bitchcash nchaincoin