“Fairly weak”
I would guess that anything that thrives in arsenic is fairly strong.
This is a good find, and expands the possibility of discovering life in places we never would have considered looking at.
Maybe I’m narrow minded, but if you can’t talk to it, pet it, or at least watch it running around, I’m not sure finding microbial life elsewhere is going to ring my bell.
OK, it will be a huge deal but some bacteria swimming in arsenic well, it only goes so far.