Because the only thing bitcoin has going for it is its brand name.  It can still say it is "not an alt coin".  There are better alt coins out there than BU, technically speaking.   Hell, all big alt coins are technically better than bitcoin or BU.  Segwit is already existing in lite coin (but not activated either).  DASH is bitcoin with integrated tumblers.  ETH has smart contracts.  Monero is fungible and private.  ALL of these coins, by themselves, are technically far superior over bitcoin.  The only thing that bitcoin has, is its brand name, which keeps it at number 1 for the moment.