When I first started playing Pillars 1, I knew nothing of the plot, I only knew the gameplay. As such, I ended up rolling a Male Aedyran Wood Elf Wizard...just like I soon found out was the first real companion. Being extremely similar to Aloth (We even had mostly the same spells), I was quite disappointed in how little acknowledgement there was from him. Sure, he had one or two Aedyr interactions, and one or two Elf interactions, but nothing directly commenting on just how similar we were.
And honestly, that broke my immersion quite a bit, even kind of ruined the fun of the coincidence ever happening, since it was never acknowledged.
Even if it was just non-voiced text dialogue, I would love to see more interactions based on such strong similarities with companions in Deadfire. After all, if you and a companion have that much in common, it's really out of place for it to never be addressed.