Zhulong: do we need to keep it this way?

[Ebereasider]

There is no monstrosity in asking a decent passive at least of same level or slightly higher (+100 hp every 3 seconds it's nothing) of a pet that can be obtained by opening locks..against an hard craft pet

Zhulong is primarily obtained by opening locks too (from massive temple crates), it was only added as a crafted pet on an afterthought by Cinco much later which is bonus.