I like Buck tend to avoid discusions of this subject , but from a purely secular point of veiw involving only performance , here are my thoughts.
Puppetry in my veiw is often considered a lesser art by lay people of all walks of life, People tend to view it as a "Childs" activity so it is rarely given the thought and respect it deserves.
in general the puppet ministry work i have seen is done by well meaning but less than talented puppeteers, the simple truth is , they are doing this for the most part on a voulenteer basis,and i cant fault them for trying to get thier message(what ever that maybe) out,But even as a kid , i knew bad puppet stuff when i saw it.
But its not just Puppetministry people who are guilty of this, lots of people do bad "puppetry".just look at some of the stuff on Youtube, or Basic cable, heck even on some local public television stations, Their is a reason the big budget puppet shows are very selective about who they hire to puppeteer.
Unfortunetly , i do not think that much can be done to sovle this, unless all of these different Religions (be they christian or any other denominations) are willing to spend the time and money necessary to train better performers, write better shows, and build or buy better puppets.
just my thoughts ,