BTC bottom may be on the 400 Weekly MA

Crash of 2015: Bitcoin trading was 208 weeks old and the bottom was on the 200 weekly MA. (Red line)

Crash of 2019: Bitcoin trading is around 440 weeks old, bottom on 400 or 450 weekly MA ??? (Green line = 400 week MA)

I think that it makes sense that the bottom of the crash is on the mean of the complete period of trading bitcoin, right?

Please share your thoughts on this one, thank you!