Seeing as unless you are buying a house over 935k then you will be paying less stamp duty than you would have in the last 10 years.
I think the issue is the demographic of people buying the more expensive properties and therefore having to pay more than they can afford in stamp duty
Even 10 years ago a 1m property was a preserve for the very rich. Now it entirely conceivable that a couple earning around 50k who bought their first house for around 300k 6 years ago will need to be paying nearly 1m to move to a bigger house in the same area (with their current house being worth around 600k now). Even if their wages had doubled in that time stamp duty would be nearly a years net household income.
Whereas before the 1m houses were bought by rich people using their huge city bonus to pay it.
No wonder people cant afford to move, the rungs of the ladder are too far apart and too many ordinary people on average salaries cant afford to move