I think the Court's opinion is that the remedy to the courts is still available even after the board's decision, so it's fine. (I think this is good but an unfavorable board decision reversed by the courts later is going to have very bad effects on the businesses affected. Property rights need to be secure and uncertain property rights are _punished_ mightily by the market.)
It's not, because unlike property you can't establish that 100% of a project were your ideas and your ideas only. Every new project is a recombination of ideas. It's not 100% original.
If copyright and patents would be enforced perfectly and automatically, there would no longer be any new inventions.
https://www.theguardian.com/technology/2008/feb/21/intellect...
https://mises.org/library/intellectual-property-not-true-pro...
But the problem that concerns you (regulatory capture by lobbyists) is almost certainly prevented by Federal Circuit review of the PTAB's IPR decisions, which require the Board to support its decision by applying both the correct legal standards and based on 'substantial evidence' (which is a legal term of art).