That video looks good... though huge fleets focusing on one tiny ship always looks funny to me, both there and in-game.
Whoops, forgot about modules. Would be a good use of them, I think.
For boarding, I was thinking more of using it purely to gain control of the ship... though sabotage is also a good option. Again, with how automated it battles are, I can't really picture a good way to make boarding look good either way, though.
And I haven't played Nexus, but if you want to see boarding sabotage with your own eyes, play FTL. You can use your crew as well as the ship itself to get rid of intruders... like, just vent the atmosphere, lock the doors, and wait for everything to take care of itself. Or cower in a corner as they destroy system by system, disabling your ship as they attack it both inside and out. FTL is a ruthless game.