111. The exclusion of honorifics shows disrespect if you don't know or aren't close to the person. So if anything, he didn't think Kanda deserved to be treated with respect. Might not equal hate, but seriously, Hoshino obviously wanted to drive the point home that Allen wasn't a fan of Kanda and vice-versa. Not an indication of a special relationship, there.

The same can't be said of Lenalee and Johnny, since it actually implies familiarity with a person when you drop honorifics after a certain amount of time being friends/close.