That is all good and nice but for the small ships they have had a massive increase in internal modules
The Sidewinder in 1.0 had
2 size 2 Optional Internals
1 Size 1 Optional Internal
When that chap did his video on the Sidewinder it had
2 size 2 Optional Internals
2 Size 1 Optional Internals
As a Size 1 was added with Horisons
Source: https://www.youtube.com/watch?v=KP-WWSSUscI
The Sidewinder now has
2 size 2 Optional Internals
4 Size 1 Optional Internals
So even if the ship had a planned out interior back in the day, they have had a lot more optional internal which will cause issues for the small ships
What this and try to figure out where the additional 2 size 1s could even go
Source: https://youtu.be/RfGfBX2gj2g
The Eagle also gained 3 size 1 internals and the rest 2 size 1s
And whilst size 1 internals are not small, the ships are not large, and all the internals need access to the cargo hatch as they can all carry cargo