I was a fan of sdr#:
"Pro":
-- free of charge
-- good DSP algorithms
-- easy of use, clear/neat user interface
-- availability of plugins free of charge
-- support for many front ends
(by the way there are also a lot of "cons", I will write an other time...)
Now we all are in turmoil since "there's no more support for our SDRplay".
This is not the whole truth.
I' have an rtl-sdr and I can no more decode AIS (etc.etc.etc.). I have a funcube and now I have a spectrum of
only 38khz instead of 192. Fortunately I have a copy of build 1361

Etc.ect.etc.
This is to say that: it seems to me that sdr# is now concentrated in exploit airspy architecture
and even if it supports/will support other frontend it will never exploit different architecture at the same time.
And, as Jon says, they have all the rights to do this.
I'm afraid we have to find an other horse to bet on.