Has it? Boros, like all the other terms used on EDHREC is just a name for the colour identity. Yeah it comes from Ravnica Guilds but Boros Legends they I'd say often just go wide and want to do combat, not all of them but that is how I'd describe Ravnica Boros. If asked about Boros as colour pair, I'd say its mostly combat orientated commanders, which can go hand in hand with Voltron.
I suppose people are assuming Boros = Equipment/Voltron maybe because many of the most recent legends had that theme?
Now I am curious to do this properly Equipment/go-wide/everything else feels way to broad to get analytic explanation of Boros.