Machinbird,
Thanks for the link on the Embraer Legacy 500/450 FBW.
The audio briefing is very interesting.
You mention "Linked sidestick
s" but that's not what it is.
Embraer also incorporates a vibrating tactile, aural and visual warnings in the case of an accidental dual input on the sidestick. In this instance, the inputs from pilot and co-pilot are summed together.
Sidesticks are still independants (Airbus way)
Audio describes it between minutes 13 and 21.
As you mention, on the autothrottle side, Embraer did not follow Airbus, and even mentions 2 airbus accidents to justify their choice.
As I understand it also, autotrim under manual flying.