This isn't true. The archival fine art printing doesn't need a very good (high res, noise free, ...etc) file. It's about the lightfastness and longevity of the print. You can print even a 2MP family photo with pigment printer and fineart paper. It's about how important of the print to you. You may not really tell the difference when it's printed but it will be significantly different over times.
Sometime, the print from non-archival media may look better compared to the archival media as they focus more on the "POP" factors, eg. the dmax, the texture, etc rather than the high R&D cost in print longevity.
And not just printing, for archival purpose you need to consider the factors of UV, humidity, fungus, acid, ...etc that hurt the print in times. and hence you need to make sure the photo is framed with archival grade material (from the varnish, the glass, matt board, back board, storage box even till the masking tape, glue and the handling process, etc)
For commercial works, many of studio or freelance clients told me that as long as the print can last for 2~3 years, they should get rid of problem, and I always ask them to give option to their customers as we won't know how important of that photo to the client. That could mean it's the last and the only photo for the family.