Hell NO
Was totally unnecessary and wastes several years of canon material, good histories end even alternate universes. Also seems to come to nowhere.
I think that if the point was get Wanda away for the mutants it would work, but won't erase HOM since Wanda still did, a lot of event derivative of that and if something make it worse since she decimated a race who has nothing to do with her and her feeling of loneliness and isolation to punish a person, who is not related to her for not raising her good.
Well I think all that depends on the point of view, personally I think that Wanda grown a part of Pietro and they are not near as close as they used to be, while Wanda frequently blaming Pietro (sometimes with reason) about they differences and even blaming him about the HOM incident. Of course at the end of the day they love each other.