Absolutely !
It is unquestionably he did a super stupid thing yet again but if he and the club seek treatment for his problem I see no reason why Barca shouldn't sign him.
Many people here got very emotional about this bite as if they were asked to merry Suarez after the incident. It is about him playing for Barca, that's all falks !
If this poll would have been opened a day earlier, 80-90% of would have voted for singing Suarez....