Open Oblivion Gates prior to Find the Heir. Bug?

[TGS]

In the original, gates didn't open till after this quest.

I have one gate open [so far] just west of Faregyl Inn [south of Pell's Gate] without having been to Kvatch yet.

\Others have this too.

https://gamefaqs.gamespot.com/boards/529228-the-elder-scrolls-iv-oblivion-remastered/80971234#8

Is it a bug or an intentional change?