Thank you for that question.
I think questions of privilege with respect to a member's access, a member's privilege to have unimpeded access and full participation in the proceedings of Parliament, are types of questions that are dealt with on a case-by-case basis by the Speaker, by the House. They consider the circumstances leading to issues when a member has not been able to have access to votes or to the House for reasons of physical obstacles: what those were, what steps were taken, and so on.
It seems that the general principle is that steps ought to be taken to ensure the participation. Then it would be up to a case-by-case review of what happened, what the obstacles were, what solutions have been considered and used in the current circumstances. It's not something you can address in a hypothetical case, other than to say that the efforts ought to be made, as much as possible in the context, to ensure the full participation of all members.