You're forgetting you still have to get those Hero drinks and while it's possible to get Lionheart on the first disc, it's not actually that easy to do either since it requires both a lot of grinding for GF skills and dumb luck with Card Mod results to get certain very important cards.
Getting KotR is time consuming, but not terribly difficult, you don't even need to master it for either boss cause you only need the one, and there is actually other strategies to beat them with just Level 3 Limit Breaks, and if we really want to get down to it, you can always just use the Joker Cait Sith Limit Break to beat both of them since neither of them have immunity to it for a one-hit kill.
Overall, beating any super weapon is usually not challenging as much as it just requires too much prep work.
**************************************************************************************************** *****
Back on topic
Kitase spoke to Famitsu about the Remaster and offered a few minor tidbits:
- A lot of the original staff are working on it, including battle programmer Hiroshi Harada, Character modeling Tomohiro Kayano, and character designer Tetsuya Nomura.
- The character refinement is due to the original staff working and hoping to improve on the game.
- Battle assistance, which I mentioned earlier will be implemented
- They are not putting Chocobo World into the game, but they are going to make the unique items from it available through Angelo's Search ability.
- Kitase talks about how they used motion capture technology when they originally made the game and how lucky they were they didn't have any accidents.
- VIII is well known in Hollywood as he mentions the Charlie's Angel's reference and how a certain film wanted to use the Gunblade design last year (most likely Ready Player One).