I disagree. This will lead to centralization, also these *.nxt files could contain fake data that transfers all ur coins to my account.
Well, you still post that link occasionally, and users would still download it if they want too. Until the sources are revealed, we have to trust you anyway. Besides, those files can be uploaded directly to nextcoin.org website, or would that also be centralization? I know you may be afraid to be accused of centralization and such if you upload it, but really, users would be happy at this stage to initiate as seamless as possible installation of the software.
Or maybe you're right, your approach teaches users concepts of decentralization and security from the very beginning, but I was just worried it triggers too many same type of help requests from users taking precious time from the developers' primary work, that's all.