I find more value in Ethereum, so I keep it as it is

For me it’s simple math. I was mining last week and mining this week - did not cash out. When do you think I earned more?
Definitely last week

Sorry. If the mining power was same in that time, you earned same amount each week - you did not cash it out.
Actually, no. The point of OP’s post was that Ether rewards
collected by pools have gone down over the week. This is true. And this in turn has affected the rewards to individual miners, along with the lower rewards due to the extra network difficulty/hashrate.
Whether you cashed out this week or at a high today, it is still going to be less than what you earned last week - fiat or otherwise.