What they mean is that they're a million light years away musically and indeed stylistically from such peers as Bloc Party or The Others. The understated 'Forgiveness' will not secure them rave reviews. Their anonymity will not see them set upon by style magazines or Sunday supplements.
So, in that sense, Engineers certainly aren't like anyone else. The hushed vocals, sighing strings and ambient atmospherics bring to mind Elbow or Air (especially on the B-side 'Stake To Glory'). Fans of these two groups may find something of interest here but those who demand something more substantial will find 'Forgiveness' hard going.

Engineers - Forgiveness
Re: Engineers - Forgiveness
Engineers - Forgiveness
Engineers - Forgiveness
To imply that buzz bands such as Bloc Party and The Others are 'more substantial' than Elbow or Air is just plain idiocy! If anything the reverse is true, especially in the case of The Others who are surely the ultimate example of style over substance.
Re: Engineers - Forgiveness
"i'd rather listen to this than the others any day."
So I guess that we both read into it an implication which wasn't meant to be there.