No I didin't expand the ROM. Who needs to?
There's plenty of space unless you purposely waste it.
Honestly, if I post the old IL with 3 gyms, a fishing contest and a couple of added maps, and some new music and it was in .ips and was very small ptach, don't you think the new IL with 2 gyms, a sidequest and a minigame, new music and no added maps will take up a ROM?
When I said it was taking up space, I was joking, it was pretty big for a script of it's size.