Don't be quick to forget that Ethereum is also an altcoin. So, when referring to altcoin season; ETH is also included. By the way, I don't understand what you actually meant by ETH outperforming Bitcoin when we know that Bitcoin dominance of the market is still above 51% while ETH has 16%. There's still a huge gap.
I did not write anything that ETH ourperforms Bitcoin and you misunderstood my post. Ethereum is like other altcoins, can outperform Bitcoin in short term but in long term, Bitcoin is the best in safety for your investment and its ROI.Bitcoin dominance might fall to 48% to 49% in coming days and it will give time for altcoins to have a strong wave of recovery.
I think he meant if ETH price increased higher than Bitcoin price in terms of percentage, ETH outperform BTC. 
But it's only outperform in that time.
I did not mean so but because you both said about outperform of Ethereum against Bitcoin, if you see the chart at my topic writing time, it is an outperform at that time but it's not what I implied when I wrote this.But it's only outperform in that time.
I only shared two graphics and want to discuss about possibility of an altcoin season with signals from Bitcoin and Ethereum, not discuss about performance of Ethereum against Bitcoin.