The Visitor wrote:

To flare nice with full flaps invites a tail stall.

Not likely. You will lose elevator authority, but the AOA gets
smaller as the tail moves down.

why there is the abundance of nose gear collapses in the type.

Actually, there is an AD out on the Seneca nose gear. The collapses
are generally due to misrigging of the airplane. Friend of mine has a
nosewheel collapse after a full stall, nose high landing.