To be fair, if memory serves we've covered all that and more at various points. It all matters.
For example, can't stand the Amber Heard/Johnny Depp case (not followed it beyond the basics), and yes it's a celebrity ding dong - but it matters because it affects how people judge women when it comes to problems in relationships. Was it technically a domestic abuse case - no. But that's what a lot of people will remember it as, and that it was ruled that Amber lost despite awful behavour on both sides. Will that mean fewer women come forward to report domestic abuse? Or that more people will look at women to do step forwards with suspicion, and put the character of the woman on trial? Probably.
Elite sports may not interest everyone, but what happens there will influence what is acceptable in other areas - the same as sexualisation via mandatory skimpy outfits. It is high profile, and if it is decided there that social gender is more important than biology when it comes to competing in events classified as female, even when male biology gives a natural advantage, then that stance will start to affect not only the grassroots kids that people like O2.0 train, but also invite abuse of that ruling. Some people already do lots of actually illegal things to succeed at the Elite level, it is a safe bet that some will regard faking being a trans-woman as a way to be succesful in womens sport as opposed to average at mens sport. Extreme? Yes. Unfair to biological women? Yes. Offensive to genuine trans? Yes - but someone is going to have low enough morals to try it, and probably have the balls to get away with it too.
Some of these are very tricky and uncomfortable to debate. In a meeting just last week, a group I am in had to decide whether to support a national proposal from a trans equality committee to more closely involve the trans community in something pretty innocuous - environmental issues, or something similar, I'm struggling to remember specifics as we reviewed several dozen proposals over a whole day! Either way, it was pretty routine and easy to agree with - barring one sub-clause.
Tucked away about two thirds of the way down was a paragraph calling for (and I'm paraphrasing here) the challenging and closing down of all 'gender critical' language, opinions and viewpoints. The way it was worded placed no limitations on what could be interpreted as 'gender critical', nor did it define the term or give examples. I could see many were uncomfortable with that part, especially as it was utterly unrelated to the rest of the proposal, but no-one was willing to challenge it and the recommendation from the (male) chair was strong acceptance.
So I bit the bullet and spoke up about the potential for the abuse of that clause without proper definition. Next thing I knew all the women - and some of the men - were echoing those concerns. I even had private messages (it was an online meeting) thanking me for actually speaking up as they wanted to but didn't feel they could. It was all very polite and respectful, and we ended up not supporting it and agreeing to request clarification instead.
Is that a big thing in the scheme of things? Not really. But it matters, because if you don't ask these questions when you can, then it might not be possible later. Also, if the motives of the proposers are decent, they won't mind clarifying anyway