I have to agree with obnurse about the protective garb on the hospital staff. It's for their own health, whether the patient has a known transferable illness or not. The eyes and mouth are mucous membranes, and need to be protected. They're doing to for not only their own health, but the health of their families and future patients.
Now for the draping, that's just silly. Doesn't offend me, but does highly annoy me.
As for the terminology debate, I don't particularly care for the term delivering being used by anyone but the mother. Assisting during the delivery sounds best to me, even though caregivers delivering is indeed correct. However, "catching" just sounds so wrong. What, am I going to squirt the baby out so fast you'll have to go long to catch it? I don't think so. How about receiving the baby?