Again, the market does a terrible job of making such considerations visible because not enough consumers care. It's not like online travel agencies don't want to distinguish themselves or airlines don't want people to know they're operating A380s
There shouldn't be any difficulty in adding an "A380" filter to a search engine (even for third parties, it's a field in the schedules datasets), but the set of people searching for flights mostly by aircraft type, on routes where A380s actually operate isn't necessarily larger than the set of people who will check the A380 box out of curiosity, be surprised at how few options they get and then book on a different site.
It's perhaps telling that SeatGuru, with its excellent and unique rich data on airline seating, comes with a pretty bog standard search tool.
There shouldn't be any difficulty in adding an "A380" filter to a search engine (even for third parties, it's a field in the schedules datasets), but the set of people searching for flights mostly by aircraft type, on routes where A380s actually operate isn't necessarily larger than the set of people who will check the A380 box out of curiosity, be surprised at how few options they get and then book on a different site.
It's perhaps telling that SeatGuru, with its excellent and unique rich data on airline seating, comes with a pretty bog standard search tool.