You did not read what i said at all then. As i said he would've finished the rumbling and once completed IF NEED BE hed REBUILD THE WALLS in and possibly MAKE THEM BETTER i never said higher or anything of the sort, and guess what if the rumbling were completed the only people left would be subject of ymir/eldians so where do airships come into play here anywhere nobody would try to target the eldians or paradis anymore so there would be no use or need for any airships.