Metronome may have a proficient team of experts who have designed it at high standards, but it is a naïve thing to say that it is a 'bitcoin killer' as bitcoin still has its overwhelming dominance upon the market of cryptos.
I thought the OP has created a non sense title to this thread, the bitcoin will always dominating the crypto currency. I know that one of the team in the metronome project is a former of the blockstream team. It looks like that is the real reason how OP was putting its title.