IMO there's no problem with it whatsoever as a road bike frame will be very well suited to riding on the road. Unless you Dremel off all the braze-ons and powdercoat it I can't see why anyone should get pissy about it. It's not like there's a shortage of 80s steel road frames - you're hardly depriving anyone who wants to do the vintage racer thing.
IMO there's no problem with it whatsoever as a road bike frame will be very well suited to riding on the road. Unless you Dremel off all the braze-ons and powdercoat it I can't see why anyone should get pissy about it. It's not like there's a shortage of 80s steel road frames - you're hardly depriving anyone who wants to do the vintage racer thing.