FWIW: Europass CV's generally don't go down well with employers. There's an unfair stigma attached to Europass CV's as the candidates are perceived to be of inferior quality.
Speaking as an employer: both receiving one through the regular channels and via recruitment agencies I've never seen anyone perceive Europass as anything like you mentioned.
Maybe it varies from location to location or with the area of expertise but Europass are pretty much ubiquitous around here.
Also speaking as an employer, with the exact same mixed origin as you (judging by your handle!) but working in another European country: Europass CVs are poorly formatted (cut-off tables, meaningless whitespace, poor typography,) too long, too formalistic and fail to put forward the relevant information. Curiously, I only ever got them from recent graduates coming from our home country.
It's not a Europass CV problem if it's too long or doesn't put the relevant information forward. That's the applicant's problem imho.
Europass is awesome. Perhaps not perfect but the original aim was to have a standard format for the EU and leave behind all the local national rules of how-a-cv-is-expected-to-be.
Also, I can't help to think that you must suck as a recruiter/interviewer if you draw conclusions from the tool that the applicant used to generate a CV, rather than by its contents.