Hello,
there are still some players who have issues running the Java launcher and others who must use an old Java version because they have other software requiring it.
Furthermore, Java 7.10 and even the latest 7.11 are affected by a very nasty security hole that allows any hacker to intrude in people's computers who just enter a web page containing malicious Java code, even if they turned Java security to maximum.
Couldn't you re-enable the old launcher, expecially since it was still working? It worked well and gave way less troubles than the new one.