So to the OP - you won't fly to KIX, because a) you had to fill in your hotel's address and b) customs happened to look through your bags. Wow, major hurdles. (I use NGO, KIX, NRT & HND - at each usually I'm waived through and at each I have occasionally been stopped).

The other rants about KIX are just that - rants. But of course feel free to fly to NRT even if your business/holiday takes you to the Kansai area. But be careful - there might be a change of policy at Japan Immigration, so next time (the horrors!) even at NRT they might ask you to fill in your hotel's address. What then?