It’s not bricked, you can still wipe the SD and install any OS on it.
Mark 2 device is about $350 USD, not sure Mycroft team will give you this in exchange of a RPi 3. Picroft is more a community project rather than a product from Mycroft they are not oblige to provide support on it.
I stopped using Picroft the first day I tried it, I switched to a Raspberry Pi OS 64-bit Lite and then install mycroft-core following the official documentation.
If you have a Mark 2 then they will answer you because you paid for the product but if you try to install mycroft-core or Picroft on any devices then they don’t have to because it is community based.
I’m confused, because I asked you multiple times if you removed your skills directory and you mentioned that you fresh install as well. If that was the case, this skill would have been removed and mycroft-core should have been able to start.
The skill is from @andlo which is not part of the Mycroft team, opening an issue on the skill was the right thing to do. Now you will have to wait until @andlo has some time (if he has) to fix the skill or you can write a GitHub PR with a fix.