maybe. this was the group that made the splashy but totally wrong assertions about arsenic-incorporating extremophiles a few years ago, so i'll pay attention only after peer review.
Skepticism is a good thing, but I think you are painting with an pretty broad brush. Penelope Boston was not an author on the arsenic extremeophile paper. The only connection I can come up with is that the lead author of the arsenic paper was affiliated with NASA's Astrobiology Institute and Boston is now director of the institute.
Actually, not even the same group(s). They have a strange sort of structure where the institute is made up of a rotating cast of academic and NASA teams: https://nai.nasa.gov/teams/ It looks like all the groups around during the GFAJ era have been replaced.
"They were also so hot that scientists had to don cheap versions of space suits—to prevent contamination with outside life—and had ice packs all over their bodies."
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[ 6.4 ms ] story [ 41.9 ms ] thread"They were also so hot that scientists had to don cheap versions of space suits—to prevent contamination with outside life—and had ice packs all over their bodies."
*https://en.wikipedia.org/wiki/GFAJ-1