can't there be more than one instant wikipedia? yours loads the article directly, whilst mine loads related articles when typing, with a snippet of what they are about.
mine is faster in case you just want to know what something is and not everything about that. and mine also shows related results that may be of interest, or not.
I prefer the direct load because the 1st hit is almost everytime the page I would like to read. For example I use http://WikInstant.com for college (i.e. quickly looking up diseases), WikInstant.com is perfect for that doesn't require me to use the mouse (compared to other wiki instant sites).
It does a fulltext search so the "I'm feeling lucky" is only while typing. In case everything fails an autosubmit will be done on the regular search engine of wikipedia. Can you give me an example of a frustrating situation which is not a problem when using the old fashioned search?
Install the Surround Video app (https://appsto.re/nl/QdvDL.i) and use your iPhone/iPad as a Oculus rift alternative.