I think that this is more about the short term
as in
before crafting our own picks and while many blocks drop nothing and only break and disappear and while we have the whole infinite blocks thing.
for example
In the world I’ve been building in there is a LOT of white stone that cannot be mined, using the slow pick on this feels like a waste because I get nothing from it but a hole so it becomes frustrating and tedious
the idea is; “if I get nothing for it, it shouldn’t require this much time & effort to deal with it”
furthermore with infinite mode having more than one of anything is a waste of time
that’s why we want the instant “creative mode” mining, if we had a progression of picks and mining netted us needed resources the time spent mining would be worth it
as to the super pick idea that you spoke of, rather than crafting it, it could be legendary loot for beating a boss or something like that. Like;
Legacy of the Oortian Stonecutters
Legendary Pickaxe (uncraftable)
unbreakable (infinite uses)
mines all stone types at 800% rate & doesn’t break the stone into cobble
negates all ore mining bonuses while in use
cannot mine non-stone blocks
(flavor text) “It has been said that the Stonecutters of Oort could level mountains and carve up continents as though they were made of smoke.”
