This remains a far better usage of energy than ETH. It's not optimal but at least it's preserving some food. You can hardly do worse than consuming energy just to eventually get a proof that you burned a big amount of energy.
I think my iPhone SE has a ~7 Wh battery. It needs about 80% extra charge each day, which means its consumption is roughly 5.5 Wh per day or about 2 kWh/year.
At the previous 112 TWh/year ETH was using before the merge, that would be the equivalent of 56 billion iPhone SE's. Think about that.
The energy usage of ETH's POW used the equivalent power of 50B smartphones.
Come on, do you seriously compare something that you and nigh everyone use multiple hours each day and effects you on a physical basis to something as useless as cryptos?