1. So an E2 stock would have solved this.
2. I agree on this one, but it's not overly difficult. The only ##### part is the op rod spring guide pin. For me anyways. I know it can be disassembled without tools and have done so many times.
3. Adjust manual of arms. Operate like an AK.
I'm not ripping on the FAL, I just find it peculiar that most opponents of the M14 make it more outdated than it needs to be. Like its some archaic junk with outdated systems while the gas system of the FAL is just as old, if not older than Garands. That aside, if it were possible, I'd own in order: AR10, FN FAL, G3, then a M14. But alas, 3 are prohibs, 1 restricted, and 1 is cloned.
With regards to item 3, an AK still has an inferior control layout despite the fact that workarounds have been developed. The trigger guard mounted safety of the M14 is also more conducive to NDs.
I own and enjoy a Norinco M14 and it has better iron sights than a FAL. I would certainly not feel poorly armed with either and I think that any discussion of the relative merits is splitting hairs.
If cost and legal classification were no object, one of the better 7.62 ARs, such as Knight or LMT, would be my first choice with the FAL as my second choice.