Fair enough on sidelines and lacking refs. The sidelines were a focus earlier in the generation for them, but it seems all EA games, probably due to the engine they use, don't have the memory to tackle it in terms of how they split out memory during a game. It probably is a programming thing at this point where they need to redistribute memory or just wait until they have more during next-gen. (And yes, I saw your videos below, and I also remember what APF 2K8 did as I'm someone who has pointed it out on this very site in past years.)
I can almost guarantee EA has more hours with their guys than 2K did at the time. The voice actor line was a fair thing until they got dudes who live in-state. They have plenty of hours with the guys they have now, it would be an argument more about either how they spend the hours or how they implement the content at this point. In fact, I think your argument sounds much more like an implementation argument than an hours argument.
If you go on the NHL forum, I think you'll mostly hand-waved away for this comment. I don't think NHL presentation is bad, but it's not very deep or anything, and the franchise mode is routinely ripped on as well in there. I'm not sure if maybe this is just a case of you not playing NHL as much as Madden, and thus just by default it seems better, or you legitimately feel this way while playing both a lot (both are valid opinions, just curious).
As is stated at points in the article, I think hands down the biggest thing missing is anything trying to bring you more into the world beyond just what's happening between the lines that day. So I'm with you on wanting a show of some sort.
I think we have had it in the form of NBA 2K and College Hoops 2K at various points, but if you mean football, then fair. It's odd to me that basically no franchise has tried to get back to the point that NFL 2K5 was at across every sports game overall. EA's NCAA Football franchise was maybe heading that way and College Hoops was close, but then both were canned.
I definitely got bored watching the 2K5 highlights, but I don't blame them for running out of stuff. It was all shot well, but it was shot well because it was all pre-canned. I mean literally you needed the hard drive on Xbox because they would pre-load the canned replays onto your device and there was a limited number of replays they had that Berman did VO for. In today's environment, it's hard for me to believe they couldn't find a way to one-up that by auto-generating replays for some sort of weekly show if they wanted to invest in it. It just might not be something they think is worth that heavy investment.
As for in-game stuff in terms of a halftime show, beyond getting highlights from games you aren't involved in, it just feels like they haven't invested much in updating the halftime show beyond changing the voice since it was first implemented years back. Again, it might just be low priority for them.