It's not shotty software, but it is a first public release of a new software.  There is an SP coming that will polish off all the things that people have reported so far.  Lighting has been discussed by some.  I don't think I have any issue with lighting, but then again I don't trust FSX to turn on all the lights itself.

There are more than a dozen light switches on the overhead and I think 5 or 7 more on the FE's panel.  Most of those control interior lighting, though.