This is in line with all that I have read. I don’t see how SCOTUS could avoid taking this case if it was only Texas.
With all of the additional States joining in I believe it makes it impossible for SCOTUS to ignore this case.
I think that you may be underestimating the ability of reclutant Justices to conjure up excuses to avoid the issues. Three of the Justices don't like the Constitution and never support it. If two others get wobbly, they will invent some "the got ate my homework" excuse and dodge the whole thing. The Court meets in Conference today and will probably take a vote. Stay tuned.