First of all, thank you for the great feedback!
glad to know I'm not the only one interested/using this setup.

I apologise if I sound overbearing, as it seems that you have been using this setup for quite some time. I've just recently picked up a PSVita with remote play as a primary function so it may take some time for me to adapt, but that is exactly the issue. It is a working platform if you adapt to the way it currently functions and find workarounds for some of these limitations. However, that is not to say that it is the most optimal setup, and not exactly the kind of issues potential users of this setup should have to face. The target users for remote play are a subset of a subset of a subset. People who own a PS4, own FFXIV, own a PSVita and have a networking setup that happens to work well for remote play, be it on lan or over the internet at a remote location. It is not a majority share by any means, and remote play despite being a selling feature for the Vita to current ps4/ps3 owners is sometimes poorly implemented and often overlooked, and I highly doubt it would gain much attention as a pressing matter to address, be it by Sony or the game developer. If the mac port of FFXIV was released to market, pulled from the market due to bad performance and not referenced in any public statements by Square Enix for 6/7 months after a public apology, then I highly doubt improving remote play would be as important an issue. However the improvements that could be made are relatively simple and do make the value proposition of using a PSVita to remote play FFXIV far more enticing to potential customers.

I believe you can agree that playing the game on a handheld console does have a particularly nice feeling to it, otherwise you wouldn't have responded so positively ^.^

Lets keep this conversation going and see if there are other interested individuals and possible solutions that can be found.