I honestly see no difference in this whatsoever, and doubt they thought of "past champions" when they retired the titles. They simply saw the obvious, and acted on it. There's little to no value in women's wrestling, so to have 2 titles for the Divas, God bless em, was too much. I think they created the second title in hopes of generating interest in the Diva's, but pulled the plug when absolutely nothing came of it. I think all the thought they put into retiring the Divas championship was simply trending with the times. The company doesn't refer to their females as "Women's Wrestlers", they call them "Divas." So it was simply keeping the name of the title that the name of the division centered around.
The second set of Tag Team Championships had to go as well, and they did the right thing by eliminating the titles. The titles are current called the WWE Tag team Championships, so I dont think its any disgrace to former holders such as Edge, Rey Mysterio, Kurt Angle, and Chris Benoit for there to be teams of this day and age to be holding them. There have been some very credible teams to hold them when they were Unified, such as Jerishow and DX, for example. The only reason I believe they changed the name to the WWE Tag Team Championships was that before they did, you had the champs coming to the ring with both sets of belts, which was rediculous. So they did the logical thing and made a solo championship for each champion. The name, both regarding the Divas and the Tag straps, is irrelevant, really. Let me explain.
When people think back at The Road Warriors or the Hart Foundation, most won't remember that they held the "World Tag Team Championships", they simply were the tag champions in the WWF. There have been so many changes over the years and with the introduction of the WWE Tag Team Championship back at No Mercy 2002, it became even more convoluted, especially the longer you look back. Since Vince has admittedly noted that he doesn't care about tag team wrestling, Im guessing that he may not even remember who held what title. So the same thing will be remembered next to the names of David Otunga and Michael McGuillicutty, Santino Marella and Vladimir Kozlov, and The Hart Dynasty, and that's that they were Tag Team Champions within the WWE . I dont believe it matters one bit to Vince or anyone else in control what the name says on the title, nor were they thinking about Legacy. The WWE Tag Team Championship is simply a name relational to the company, so hence, they created a title with its name in it! Noone will look back and compare Vlad and Santino to L.O.D. or the Hart Foundation anyway, so what does it matter what the name of the title is? All the teams won the Tag Championships in the same company, but legacy, not title name, is what the best will be remembered for.
As for the Divas/Women's championship, Kelly Kelly, Alicia Fox, and Nikki Bella will all be remembered as reigning the Divas division at one point in their careers, the same as Moolah, Lita, Trish, and Mickie. Will they be held in the same regard? No, but it has nothing to do with "dumbing down" the names of the titles to protect the legacy of the old guard. Those who created a legacy won't be forgotten or lose their place in history, so the name of the championship is truly irrelevant.