[sv-bc] port connection types consistency issue

I think that all port connection type rules should be the same
regardless on how the port connection was made (.name, .*, position or
name).
If the .name or .* is a convenience to write the port connection, why making
it not possible for people to use the short cuts in the place where regular
verilog port connections
by name or position would have worked perfectly?
 
What is the reason for adding these restrictions?
In particular, disallowing the implicit casts but allowing the 2 state to
4 state implicit cast? (ref 19.11.3)
 
Francoise
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