No matter how you look at it, there's a dangerous precedent. It's perfectly natural to be wary of wrong doings in the past even when amends have been made. And considering the amount of alternatives freely available it's just not worth the headache of having to go and figure out whether they are being honest or not.
With Ubuntu there's a similar scenario but given is probably one of the largest distributions there are plenty of eyes on top of them that I would trust them more despite of what happened in the past. Still, Ubuntu is definitely not one distribution I would switch to in any case.