1) When Agricultural Property Relief was introduced under Thatcher, it was 50%.
2) Estate Duties/CTT/IHT & exemptions, reliefs, thresholds have been introduced, abolished, and fiddled with for hundreds of years, and nobody, be they business owners, farmers, or individuals has ever been happy about them.
But above all - anybody who thought that the government was wrong to make the last lot of changes, and said they should drop the idea, and then crows and mocks when the government does just that is being hypocritical, and contributes to creating the environment where governments will resist ever changing their mind as hard as they can.
If the tenor of the reporting and commenting is "welcome change of heart" instead of "embarrassing U-turn" and "humiliating climb down" that will contribute to creating an environment where governments are more willing to change course.