I'm confused about people saying there is no limit to long rests. I've had several occasions in which the game told me it was not safe to rest here, so I had to leave a zone before being able to take a long rest. Did this not happen in your play throughs? I'm thiking maybe it was a bug that this feature simply didn't manifests in your safes for whatever reasons.
Personally I rather missed being able to have more than a single short rest. Two or three times I wanted to take a short rest and realized I was only allowed to take a long one.
The moments that you are not allowed to rest are very few.
