I feel like the analysis missing here is whether or not the Örebro Party supports policy that would eventually undermine internet privacy and freedom of speech - two missions that would directly contradict Mullvad's core mission of being a log-free VPN, and thus call into question whether or not they can continue to be trusted in a field where the stakes are high.
The other policies they support don't look encouraging when you consider correlates of parties in other countries, but they seem to have not declared an explicit position for or against censorship and privacy, and they also seem to be a party where others' correlates may not apply here.