No idea where the best place to put this is, since there is no zone-specific discussion section so here goes.
Solution Nine is a big zone. Vast and open, and of course you can use Aethernets to traverse but it still leaves a lot of empty space that while extremely visually pleasing (probably some of the best I've seen in this game honestly, both thematically and quality), seems to be missing something very important - The ability to mount up.
We've seen as of DT that they have the technology to remove the presence of player models when close to select NPCs, and so I feel it would be possible to extend this to gear vendors to eliminate the concern of people trolling on mounts on top of them. Additionally, in EW (and maybe before but I can't recall) the "Hoofing it" debuff is present in Island Sanctuary content, demonstrating the possibility of having specific areas where mounts are not allowed but can be used anywhere else in the zone/instance.
We've not had an endgame zone where we can mount up freely and "show off" (not that mounts have much value but it's still nice) our grinds since Rhalgr's Reach back in Stormblood. I understand why Eulmore and Radz would perhaps have disallowed this in terms of logistics since they are very enclosed spaces in comparison, and I understand that S9 is in fact in doors, but in terms of space it does not have this issue at all and even has flying bikes and stuff visible in the skybox. It feels like very wasted potential to not allow us to mount up again in an endgame zone. Perhaps flying wouldn't be necessary, but mounting at any speed would be very welcome.
I heard from other players that the ability to mount in Idyllshire was added in 3.1 after feedback. Not sure how true that is as I did not start until 4.1 myself, but if so then this lends credence to the idea that it can be added without much difficulty and I feel like it'd be a worthy addition to an already amazing zone.
Please consider this, Square Enix, if you read this.
Thank you.