Was penalty for Williamson handball correct call?

[BBC]By now, you will likely have seen Leah Williamson's bizarre error that resulted in Arsenal letting a two-goal lead slip to draw 2-2 with Paris FC on Wednesday in the Women's Champions League.With the Gunners leading 2-1 late on, England captain Williamson stopped a short goal-kick with her hand - believing it had not been taken - only for a penalty being awarded to the hosts, scored by Maeline Mendy.While Arsenal felt hard done to, the guidance on such incidents state that the decision to a