Mr Angry At worst, it shows Howe is thinking big; at best, it can be seen as a statement of intent.
Why are people slagging him of for saying it? If he came out and said "we hope we can avoid relegation for the next 10 years" he - and the club - would have been accused of lacking ambition; sometimes there are "fans" only too happy to criticise ANYTHING the club says.
He also hasn't put a timeline on when this may (or may not) occur; in the 30's Huddersfield was a huge club. In the 50's Wolves, Blackpool and Bolton were. In the 60's Burnley were, in the 70's Leeds and Derby were, in the 80's Forest were....in other words, what may have sounded mad in the 80's to a Forest fan (that, for example, Chelsea would within 20 years be far bigger and more succesful than they whilst they were in the 3rd tier of league football) came to pass - and so it could again.
Money was not so much of a factor in those days though Mr A, unfortunately now it dictates exactly how well you can progress as a club