It would be really helpful if Intel would make a statement that they did not intentionally destroy Altera for anything but high-end Stratix 10 chips and they plan to correct it. Their silence is probably our answer.
We've been looking at abandoning Altera (I notice the Intel spell checker does not think Altera is a word :-) ). The problem is all the other vendors have their own issues. We looked at switching to Xilinx since the Altera SoC tools are unusable crap, but then Xilinx Vivado is garbage (although the non-project mode looks promising). What a mess ...