There are problems with laser protection glasses/goggles, they are not perfect, whatever the manufacturers will tell you. For example, some create a problem with depth perception for the instruments so that (eg) PFDs appear to float, some interfere with display colours, etc.
You would need to conduct proper trials to prove that the displays provided by the aircraft OEM are either unaffected by the chosen glasses or that any effects are acceptable.
The doctors will tell you it is normally better to prevent the disease rather than try to cure it later. We should therefore be trying to stop the attacks (which are crimes under UK law) rather than mitigate the results. And before anybody resorts to standard PPrune argumentum ad hominem, I accept that we may eventually need to go down both routes!