I have a world I am interested in getting onto the Quest, and it performs exceptionally well on PC as is. The world in question renders/activates objects when needed, and this is controlled via Udon to maximize performance. On paper, this would work perfectly fine on Quest 2 with its 6GB of RAM, but the current 100MB limit deters this.
With limits getting eased up as greater adoption of Quest 2 (6GB) over Quest 1 (4GB), we could easily have 500MB worlds on the Quest version of the game under this logic, but we don't. Avatars make sense to regulate, but world filesize does not carry a direct performance correlation outside of RAM, and worlds can get up RAM/performance regardless of the package's initial filesize.
The ability to upload worlds of greater than 100MB filesize should be at least be open for review, either through player feedback (Community Labs), or a more traditional benchmarking process.