You, as well as I, would be fine with a show with OT characters. But I think there are a lot of people that would not be. And I think a lot of those people's reasonings are irrational. Go read the discussion on Yakface's comment section about this.
I was lol quite a bit yesterday as people posted comments at Yakface or on twitter about how this show is more Disney garbage or is doomed to failure based on the simple fact it had the audacity to be set in the pre-TFA era.
It could turn out to be the best cartoon of all time with an amazing story and amazing characters, but nope - it's garbage because Poe or Phasma or whatever. This could be the "X-Wing Squadron" show people have always clamored for but because it's a guy named 'Kazuda' and not 'Wedge', it's garbage.

Would I like to see an OT cartoon or a Han/Chewie buddy cartoon that gave us a bunch of their adventures? Absolutely... but I'm a 44 year old man with an OT man-crush. I cannot blame Disney for trying to create some new pilot that some new group of fans/kids is going to fall in love with just like a number of kids out there fell in love with Han or Luke or Obi-Wan or Hera or Chopper or Ezra or Ahsoka or whoever.
Honestly, I have no patience anymore for the entitled Star Wars fans, the ones who think everything Star Wars should be things they specifically want and nothing else. Bad news for you dudes - your time is over and it's only gonna get worse for you. This cartoon is not OT focused. Many of the new movies and TV shows will not be OT focused. There will be TONS of new Disney Star Wars characters introduced in the coming years. And you know what? That's OK. You might even accidentally like some of it.
I can only imagine what the world would have been like if Twitter existed in 1990s -
- "Lucasfilm, stop introducing all these lame new characters like Grand Admiral Thrawn and Mara Jade and give us a new Han and Lando book!!!"
- "KOTOR? Try NOGAF! LOL. Why are you wasting time on a stupid video game involving a bunch of made up characters when you could make a Luke Skywalker video game instead?
- "A whole Marvel comics series about Jedi who existed thousands of years before ANH? WTF - we want more Luke comics!"