Would disagree with this on the basis that it doesn't specify which offices this applies to, and thus no one could be clear upon what is being asked to be allowed.
If this is for all offices, then I think there needs to be some justification as to why we should be reducing barriers on all offices, through a simple Assembly vote, which might very well undermine having any such barriers at all.
Some barriers exist for a reason, for instance should the Delegate be allowed to run for and hold multiple positions, including PM, should the Prime Minister be on the Court and be the Assembly Speaker all at once?
We haven't extensively thought about divisions of powers, though there is an argument for keeping the executive, legislature, and court separate to avoid conflicts of interest. The less barriers between them means a higher risk of someone compromising themselves through what they do in each role.
It is meant to apply to all positions.
The reasoning is simple, if there is a vacancy that might need to be filled, but the person who can do the job is currently in another position that is much harder to fill, it allows them to temporarily serve in that position to fill it without requiring them to leave a vacancy. Furthermore, the simple assembly vote is deliberate, as the vote doesn't count as confirmation or approval in any case, meaning that the waiver just says you
CAN be considered as a valid option and validly serve in that position, but that the Assembly does not necessarily approve of your appointment. The simple vote is deliberate -- however if enough people are wanting it to be increased I will do so. If a waiver requires a higher threshold, then I would be of the mind to have the waiver be tied with Confirmation/Election, as if you can get a supermajority vote for a waiver, then there is no question that there is support for you holding the position.
Additionally, your question of the delegate running and holding multiple positions, the most the Delegate could hold is two consecutively for four months (or two subsquently for eight months) after that it will be a nine month period before they can do that again.
We don't necessarily have strong separation of powers anyway, as our government is more oriented towards Fusion of Powers. The legislature is an Assembly open to all citizens -- including the Executive and the Court. The legislature elects the Executive from amongst its members. The only strong separation is between the various offices of the Executive, Delegacy, Security, and Judiciary. This waiver allows for a temporary and short term violation of those separations in times where it is necessary, provided the Assembly agrees.
I do not introduce this legislation lightly, however it has been carefully considered for a while before now.