Thats a shame; they are very attractive trees.
All of these are now gone. The roadside trees in Provence survive purely because the trees and Lavender fields are classic tourist icons. The fact is, the trees have reached mature/over-maturity and are expensive to maintain on roadsides. The canal side trees are different in this respect, they were disease threatened.
Having said that, a friend of mine who lives in Provence says she’s heard every excuse going for the felling, including the flashing effect of sunlight on drivers causing epilepsy and fatal crashes!
They still thrive in cities and towns, despite the pollen causing almost everyone to cough and sneeze at flowering time.
https://www.bbc.co.uk/news/magazine-15305048
This old one here has only about 15’ of trunk. The pollard cuts to the multiple stems are a large diameter, yet the tree shows no signs of suffering the ordeal. It’s at a house where we stayed near Biarritz, I was impressed with how well it’s doing. The decision not to fell was a good one, this thing was towering over the house in a very windy region of France.