you can't use the term "easier" for something that is not possible.
reversing a hash is simply impossible and will always be impossible until the end of time. no matter how much computing power is invented in the future because of how hash functions work.
reversing a public key (to find private key) is currently impossible because of the math behind elliptic curve and will remain impossible in the foreseeable future. but some day (maybe a couple of decades) it could be reversed with more computing power and a much more efficient algorithm to solve ECDLP.