N
nicebutdim
It's worth alot if that EICR then allows you to let the property ! The fact that little or none testing has actually been done is irrelevant to the person ordering the EICR... he just needs one... end of.
We have a similar situation with Gas Safety Certs and EPC certs... all largely worthless if you consider what they actually tell you... but enormously valuable if you consider that you're required to have them before you can let/mortgage a property !
Property owner has fulfilled their legal obligation and some nob puts their neck on the line for the sake of £48. Good luck to them as sooner or later they're going to need it, when churning out that sort of work.