You contradict yourself arguing that the government should be able to revoke any permit, and then saying, don't invest in projects with permits which can be revoked.
Any project can be 'controversial' depending on who is in power. The real pragmatic answer is that the government should be liable for investments lost by revoking a permit.
This project has been controversial since inception, though, and that did not change when Trump and the GOP came into power in 2016, despite what seems to be a sham approval rammed through by that administration. The controversy and lawsuits did not magically disappear.
Any project can be 'controversial' depending on who is in power. The real pragmatic answer is that the government should be liable for investments lost by revoking a permit.