My comment wasn't aimed at comparing Bruno and Lewandowski, due to their obviously very different roles, and I appreciate that Bruno has been great for United and has uplifted your standards.
But I'd argue Lewandowski is as important for us as Bruno is for you. Him and Neuer were the single most important players for our success last season, even though there are other hugely talented and important guys, as you said, like Kimmich, Müller, Goretzka, Davies, Gnabry... But in the few instances where we were without Lewandowski, our game dropped a notch. It's much harder for us to score and even create chances without him on the pitch. When he missed a few games mid season due to a scheduled surgery, we had several league games that were decided by last gasp winners, after us struggling to create danger and clear cut chances for most of the games and in the end just wearing out our opponents with our superior bench. Works most of the time in the league, not a promising strategy for the CL. Even when he doesn't score an important goal, like in the CL final, his presence automatically creates more space for our other offensive players, and on top, with his transformation to a fully dedicated team player over the last 1-2 years, he also improves our team's pressing all over the pitch to an extent only matched or surpassed by Müller.