May be its time to move on to other crypto but I think we don't need to ignore BTC if we move on, we need to stay our investment so once the market increases we can recover our previous loss.
I agree with your statement, that the crypto community should start giving more attention to other cryptocurrencies out there. But the issue, is that there are sooo many other and very few ones which can be fully trusted. Ethereum is doing very well as well as Ripple (even though, majority of the crypto community don't approve of Ripple's approach). If say ETH and XRP are now independent of BTC up and down, I think maybe BTC will itself become more stable on it's own as the backers will not want to lose out to other "self-improving" cryptocurrencies.