I'm not sure why the round soffit vent plugs are an eye sore here.
Some specs on venting. Sure you looked it up already but posted some specs
Vent calculator Attic Ventilation Calculator
Your building code may differ check it and they should also have the answer on calculations.
If the calculations call for more venting grilling can solve it.
I'm for the soffit venting the usual way.
The 'Smart View" looks impressive but it also will Bump the shingles up in that area and that I feel will be more noticeable then soffit vents. Also what about the roofs leaves/dirt/debris interacting with the gutter/ down spout possibly getting clogged or slow snow melting freezing up and clogging the 3/4" openings. They have exposed edges to the weather and can have a problem with freezing rain and water. Winter is the most important time for proper venting.
Soffit vents Never have that problem simply because they hardly get wet.
Just some food for thought here...