A little. It's not about the graphics as much as it been about the games and the council they are in.
Some games are worth playing again but for any of us it's playing them for the first time without having to pay that huge amount of money to do it. Take the Ico HD Collection. I had Ico a long time ago and I wanted to play it again along with the Shadow of the Colossus but Ico got pretty expensive before the HD collection was announced and finding SoC wasn't that easy either. Top that with the fact that very few people still have the PS2 to run them in (I do still have a PS2) and this is the perfect venue for a lot of us that want to relive the games or try them out for the first time.
Another thing is that I have an inexpensive HDTV which for it's low price I got no RCA component ports and only two HDMI ports. Finding an old TV isn't hard but it is pretty unreasonable to demand someone go get a big fat TV just so that they can play a PS2 game for which they also have to go find new furniture for.
One way to settle this would be to reinstate backwards compatibility but i honestly don't know why Sony and Microsoft are allergic to this idea. This lead to a raise of modding. I could, right now, download any PS2 game, an emulator, and boost the graphics and textures with minimum hassle or issues that would look better than the standard HD remake and run it on my computer which has a pretty decent graphics card.
It's how we stand right now. Those of us who are interested in old games can either pirate, pay a ridiculous amount of money to play these games, or just wait for an HD remake that may never come. Sony has a decent PS2 game section in their digital Classics section but it's not a fraction of the best the PS2 had to offer, or even the crap games we played and still liked. It's a good start but when the original library was so grand this seems anemic by contrast.
Another positive aspect of the HD remake is that introduces these games to people who've never had a chance to play them and might never have otherwise. We know that they wouldn't even give them a second look were they old looking game where the graphics are outdated and it might turn into a gateway game to show them what other generations had to offer.
So, it's not all bad, but it is with its drawbacks, I agree, especially because there could be access to a plethora of games available to us if only there was a way to play them via the makers. The Sony still hasn't told us how the backward compatibility promise for the PS4 is going so I'm a bit sad about that.