Definitely no. The problem isn't XT nor the forum's policy. It is the users that are constantly opening threads for the same topics in the wrong subsection.
If BitcoinXT deserves a section for itself, doesn't DASH (just used as example, I'm not advocating it) deserve one too? Are you trying to tell me there are more posts about XT than about DASH (currently ~105k)?
To simplify, the main reason for which neither have or are going to have their section is because this is BITCOINtalk, not bitcoinXTtalk, nor DASHtalk.
Update:
Dash is an altcoin, XT isn't.
It is a programmed altcoin. Your point?
What do you think altcoins are?
99% of all altcoins ARE disputed forks of bitcoin.
An altcoin is THE RESULT OF someone creating a fork that only a portion of users decide to mine and use.
Ergo, it is (or will be; whatever suits you) an altcoin.