Either you've been misinformed, or we're travelling on different airlines...

For a flight I have next week, I've just logged into the "Manage My Booking" section of the airline's website (BA). Once I pick the flight, I see this:



By picking the Special Requirements link, I can request a special meal, and additionally on the right hand menu of special options it offers it there too!

Next up, trying a flight with Qatar Airways for several months time. After going to Manage A Booking, there's a section there called Flight Special Requests, which currently shows my seats, and that I haven't requested any special meals. Hitting the modify button brings up a page where I can pick special meals for each flight, including a fairly good list:



Once you have booked your flight, be that with the airline, or a travel agent, or a website, you'll get a booking reference (normally 5 or 6 characters). Go to the airline's website, pick Manage My Booking or similar, and look for something like Special Requests, then from there pick your meals. As long as you're flying with a moderately decent airline, you should have no problem doing so, as shown above!

Why do airlines (typically?) require customers to phone for special meals, and not provide this option online?
As an orthodox Jew I have seen quite a stir lately regarding the topic of biblical criticism, specifically towards the Old Testament (Torah). 

I have perused several questions in this stack which seem to address this topic in general, and learned a lot about apologetics, but I have not seen answers that address some of the major claims of biblical criticism, especially as it pertains to the Old Testament. 

For example:


The story of Noah and the flood seems to be contradicted by archaeological evidence as well as having been 'borrowed' from earlier flood narratives such as the Gilgamesh story
Many of the portions of the Old Testament seem to be borrowed from earlier near eastern texts such as the Hammurabi code 
The notion that there are multiple authors (documentary hypothesis) of the Old Testament.


In short, how does Christianity deal with some of the major contentions of biblical criticism towards the Old Testament?



I apologize if any parts of my question offend any sensibilities to which I am unaware. 
