Exactly. The "win" tinyurl.com (etc.) was that someone had the foresight to see the need at all and do it, not that it was hard to do.
Amazon got patents on less.
Amazon got patents on less.
I'm not sure of this, but iirc the learn.to/beam.to etc services were around in the early web already, mid-90s, while tinyurl and friends came later.
And of course, there was no Twitter back in those days to create an artificial need for short URLs.