I actually would argue that slower is probably better for the grid as a whole, and cost wise.
Commercial power has peak current draw fees (based on KW, not KWh), and the more/faster chargers you have, the easier it is to rack up the costs.
I have 2x 80amp wall connectors at home, each of our Tesla's are limited to 48amps charging, but I regularly set them in the 20-24 amp range to stay within our solar production output.
For hotels, and a lot of other destination chargers, I am happy as long as I can get a 90% charge in 8-10 hours. More than that is way overkill and increasing costs. I am generally OK even with a 120V 15A outlet to avoid loss, and gain some miles over night.
If you need faster, metro, long distance, V3, and other DC fast charging solutions exist.
-Harry