Anders, I do not think that any one is recommending a heavy upgrade.
I would assume that the OPs Zed originally had OEM Brembos fitted to it and fitting EBC IMHO is ten steps backwards.
The natural replacement for Brembo rotors and a step up is DBA which are also cheaper than the OEM Brembos.
However EBC will be fine if fitted correcly and is only being driven to the shops and back by your Granny.
Love your disclaimer by the way
Alex.