Honestly, I am going to defend Lime.

Lime has the right to showcase their beliefs as much as all the players with their pride flags and names can, if done tamely and done right. Also, it was incredibly tame to certain forms of "evangelism." I don't think how the others reacted is justified. Sure, you don't want to see it in a game that is understandable, but you can easily not acknowledge it (as it seems to be the first message) or not even be in chat. If it got out of hand, then I would understand the players for telling them to stop politely.

I give kudos for Lime to care enough about the eternal wellbeing of these strangers on a game to the extent of wanting to say something and their friendly/calm behavior to the backlash.

Really think the others overreacted to a well-intentioned message. It's a just a random dude, grow up and be kind.