Rather than complain it would be better to contact the rights of way team and ask to be notified / consulted on any surfacing / upgrading works to be undertaken before they happen. Individual responces are valid but club / group responses are better – the numbers game again.
There are also a lot of different stages of enlightenment in countryside management and local authorities regarding mountain biking. Lancs does seem to be leading the field with the works in Lee Quarry and plans in and around rossendale. There’s even a couple of lines in one of the rights of way strategy docs for the west pennine moors about trying to create or maintain wilder / rougher upland bridleways because some mountain bikers and horse riders prefer rougher terrain.
And the OP – diplomatic silence.