The high price was because of shitcoin btcv. People were mining this coin, paying high prices and still making a profit. Everyone was dumping this coin on coineal and liquid exchange.
That's interesting, but look at the price of that shitcoin it seems like it hasn't gained much value during that period, nicehash payouts were crazy high around 18th to 20th of last April, it only went up about 25% from its price week prior to 18th, but even assuming for the sake of it that it did do a 100% jump, this doesn't really give miners the ability to pay 8 times higher the profit they would get mining bitcoin then.

I am not ruling out the rule this coin could have played in that period, I just don't think it's the primary cause, because, if its price had gone up 10 or 20 times, that would make sense but it has not, and based on that I still believe it was someone laundering his money as fast as they could.
It's also worth mentioning that the volume of btcv was just about average during that period, it does not indicate any unusual selling/buying, I would like to hear more on how you arrived at that conclusion just in case there is something I missed.
Btcv dev didn’t like this and made changes so only certain address could mine lol.
lol, so he just had to change the code and that's it? no hard fork nothing happened? probably just his node and the mining pool's node maintain this coin anyway.