1&2 are obvious.
3. I have a slight quarrel with the word "management". I think we need a whole thread on that topic because most members just focus on what helps the things they see (i.e. hunt or might hunt), as your example shows. Nature is far more complicated than we want to admit and we overestimate our ability to successfully "manage" it.
4. I think the biggest impacts will be seen in the coastal areas. Earlier this year they exempted O&G from considering habitat when they drill in the Gulf to encourage more wells. The result isn't endangered turtles washing up dead on the beach. It has an impact over time as the turtles go from 900 to 800 to 700. This administration's response is basically to stop counting them and pretend the problem doesn't exist...all for $$$.
The ESA is one of the most successful laws enacted. The Grizzly bears are a prime example. It's not 100% successful (failed at mountain caribou) but we can look back and see measurable success over 50yrs. I wonder what we see when we look back after 50yrs of this interpretation. I don't think it will be good. We have lost a ton of habitat already and this rule change won't help that.