Yes they do.
Check to see if Resonant Woods of New Hampshire is back in business (they were without a wood shop last time I checked which was 1 year ago). They are similar and high quality but a bit cheaper than TT.
Proper joinery / quality wood work is expensive and like or not, buying the appropriate stands for your Harbeth's is the price of entry.
Comparisons with other speaker brands / stands is irrelevant.