I'm going to attempt to be nice:
I think this is one of the silliest threads I've ever seen here. In some other sports, college football for example, there is some significant disparity between what players have in their locker rooms. At bottom-level programs, the locker rooms are basically hard wooden benches w/ no individual stalls / no privacy, no carpet, nothing to kill time, etc while at the top programs, the locker rooms have been updated w/ individual stalls, flat screen TVs all over hooked up to video games, special multi-million dollar treatment rooms w/ all kinds of technology (underwater treadmills, zero gravity treadmills, etc.
If we were talking about that kind of disparity here between the Flyers' dressing room and the other dressing rooms around the NHL, this thread might make some slight bit of sense. But we're not talking about that kind of disparity. All the "more modern" locker rooms you posted have the same wooden benches, the same lack of individual stalls, the same 0 flat screen TVs, etc. The only difference is the newer ones have some snazzy team logo carpet, some cool ceiling designs, and some more refined wood paneling.
Unless you're the kind of guy who loves watching those home design shows on HGTV or the kind of guy who blurts out "That shirt with those shoes, no no no honey", then who really cares what the dressing room looks like? It's a place to get dressed and to hang out for 20 mins in between periods. Most fans don't even have a clue what the dressing room looks like.
Also, I like the nostalgia of our locker room. It's cool to know these guys are dressing in the same dressing room as Lindros, LeClair, Forsberg used to. It's cool to see the pictures of Flyer greats hanging around the room.