They do get better, but they are not approaching leather in terms of protection.
For slow speed communiting and dirt/gravel tracks I too use textile,
but never if there is a risk of high speed contact with tarmac.
It all about risk evaluation,
riding a motorbike is not without risks anyhow,
me weight the risks against to the fun/thrill/freedom be get from riding.
self-deception does not make for rational decision.
That said,
riding in rain in unprotected leathers do make you cold, loosing focus and
less agile. Probably safer with goretex gear in that case.