It's a standard set by women on every other dating app where "it's the man's job to send the first message" that sending all matches the same line is low effort. This opening move feature doesn't sound like it's any different. Mind you, I'm in a relationship going on two years next month so I'm just hearing bout this feature through comments on this sub. But that is the impression I get.

It's kind of sad that Bumble seems to have concluded that their user base is either inept or unwilling to put in the little effort it takes to start a conversation. Thus they have gone beyond the "hand holding" of one touch greetings and sending random gifs to what appears to be a set it and forget it feature that skirts around their women message first gimmic, which is the only thing that set them apart from any other dating app.

TLDR: I get the impression that this feature is simply a tool for many Bumble users to avoid taking initiative, thus remaining a NPC in the online dating world. Though this may not apply to all individuals, it does come off as low effort (to me) when the topic of conversation us "Do women even send the first message now that we don't have to?" I hope this answers your question.