The loss of domain fronting as a viable strategy means that it will be possible to censor Signal in areas where the service was previously working.
Time to look for another option then, like any other technical challenge. I support Signal's work here but unfortunately we can't just enlist every other business to help (otherwise censorship wouldn't be much of a problem in the first place).
But we should! Telex[1] and other solutions based on collateral freedom[2] have huge potential to disrupt censorship from the outside.
[1] https://telex.cc
That's the plan. This is covered briefly in the second-to-last paragraph.
> so it was never really viable
Signal remained running for more than a year and a half in several countries that were actively trying to censor the service.