I don’t read it as realistic. H1B is clearly spelled out in the law books as a “temporary worker visa,” but people have treated it as a path to permanent residency. What was offered on paper was an inch, and the expectations were built into a mile. (And to be fair, that is the fault of everyone involved, from the government to employers, but also immigrants who didn’t read the fine print.)

Ithe H1b is a dual intent visa mind you, vs something like the TN, which doesn't allow you to apply for a green card

H1B is a non-immigrant temporary worker visa under the statute: https://www.law.cornell.edu/uscode/text/8/1101

“Dual intent” is a legal fiction that was created to allow people apply for green cards while still pretending they have the non-immigrant intent required for the H1B visa. Dual intent allows the H1B visa to be used as a first step to permanent immigration in practice, but it’s still a “no guarantees” temporary worker visa according to the letter of the law. Congress never actually created a true permanent immigration visa for skilled workers.