Wall of text above. Response is wall of text. TLDR; Lots of acceptance issues that bias towards lack of exploration/acceptance.
Read through the Ganzfeld experiments, and many of the same issues with the field jump out fairly readily.
1) The opinion from society at large, is generally negative and dismissive. Therefore, much of the work is to discredit, rather than to positively try to replicate or support.
2) There's a chilling effect on those who might actually possess any such ability. Per above, the societal response is mostly negative. Much risk, little reward, and generally a promise of being a social outcast, pariah, or weirdo. Possibly an experimental guinea pig forever with needles in your skull as the only reward.
3) Social antagonism, since almost nobody likes the idea somebody else is wandering around thought scraping them like LLMs pulling your website design. Historically , mostly shown negatively (possibly for good reason) in literature, TV, movies, video games. Governments don't like you, even your own. Corporations don't like you. Most have not civilians don't like you. If it's positive (there's some lately) you're usually that wacky eccentric who solves cold cases or talks to ghosts.
4) Jealousy / envy / greed. One of the most reliable responses of having almost anything unique in human civilization is desire for others to take what you have.
5) For those that can demonstrate such abilities to themselves, there's an Extreme benefit for not reporting, and not socially revealing. Chief example, like always, money. If someone can thought scan your plans for corporate, or stock choices, then why ever report? Better to read the thoughts of Amazon, Microsoft, Google, Nvidia, ect... executives, buy or sell before anybody has the information without any risk of insider trading accusations, get rich and powerful, and never, ever tell anybody anything.
6) There's a liar's dividend issue. Any group that might possess such abilities (espionage obviously a strong candidate) gains far more by spreading false debate, causing the argument to be about lies or red herrings, and maintaining their secret edge.
7) There's a weaponization issue. What did the government immediately do? Try to weaponize. If you're opposed to being used as a government weapon, there's not much motivation.
Has many of the same issues that animal coginition, animal conciousness, and animal language had for years. An implied threat to the researchers that they may not be the most superior, or that humanity may not be all that special. Up until the early 2000's, most animal consciousness or intelligence work that proposed anything other than severely sub-human was heavily dismissed.
Personal favorite was Alex the parrot [1], that asked questions I'm not sure most humans would ask about objects and the world. Yet, general academia response ... mostly negative. General subject has gotten much more attention lately though, and so maybe some of the ESP / PSI ideas will eventually also. Mishka Wants Waffles!
[1] https://en.wikipedia.org/wiki/Alex_(parrot)