Improved alternate for Sanctuary/G.Sactuary?

[Kitunenotsume]

I was poking at an RCR, and among the other changes I noticed on regeneration was the lack of Greater Sanctuary among my available spells.

With some investigation, I found the appropriate change:

Revision: 605
Author: Rhifox
Date: mercredi 23 juin 2021 22:01:35
Message:
Greater Sanctuary renamed back to Etherealness, made Transmutation again, and given appropriate description.

While I understand the general redundancy particularly given the current state of teleports and such, I rather preferred the RP and implied mechanics of a empowered Sanctuary effect, over that of an Etherealness (such as the technical aspect of not actually leaving the Prime Material).

If having Greater sanctuary is an impractical option, would implementing another alternative like Mass Sanctuary [link] be reasonable?
The first level spell is a nice concept for less agressively inclined characters - but being a defensive level 1 DC spell makes it ... pretty ineffective at its one job.