That's not a 90-degree V8 and does not disprove my point. So why did you bring it up?
Let's see some evidence that they will produce 90-degree V8's with balance shafts. They won't.
If a company choses to compromise balance to get a more compact engine, that is their engineering trade-off.
Almost no one makes single-plane crankshaft V8's. Ferrari is the only brand I know of, for street cars. This exception does not disprove by point that V8's can be very well balanced and smooth. Why bring it up?
Firing order not relevant to the issue we are discussing. Why bring it up?
Nonsense. A 90-degree V8 with a two-plane crank can be made extremely-well balanced by using counterweights.