Its funny that some things get the security-click "Really?" / "Yes/No" system but other things don't.
For example new medals in campaign; "Accept the honours?" / "Yes." / "Really accept the honours?" / "Yes." Double security-clicks! I was recently getting medals for my mule (slow day at work) and this double security-click made me /grin. Like what is the worst that could happen if they didn't have security-clicks, you would get a new shiny higher rank medal that you didn't actually want for some strange reason.
BUT when you are half asleep and your friend drags you along to Dynamis-Qufim; "Sub jobs restricted?" / click by accident - whoosh off you go into Dyna on War/no sub, without a single security-click.
And in Mog Garden, "Harvest the crop?" / click / "Are you sure?" etc. like what is the worst that could happen if they just let you one click harvest without a security click? You get some felicifruit or something. Its not the same as being pwned in Dyna because you hit "no sub job" and didn't get any security clicks lol.
I agree with other posters in that I love mog gardening too, and that it could have some of the clicks removed without losing the mellow tropical atmosphere. The waypoint has the "decline destination confirmation" option toggle and this makes for one-click warping without security-clicks. This is the future!