I can't believe I'm saying this but I actually agree with you on this one.
The issue with DR Savage it a bit more complex though then just "difficult to get into". Unlike BA which had quite a few rewards attached to it past your first clear and the Ozma mount, DRS has.... Dyable judge gear I guess? This removes the amount of people willing to run the content again for people who may be interested in it in the future. The few Discord servers I'm on which tries to find people for these two have significantly slowed down, and BA still has far more groups for it. If they are going to do more of these in the future, they need to
1. Make the content more puggable and
2. Make it actually worth the time and effort.