The second strata manager is wrong. The EC can choose not to have meetings, but they can’t make a valid decision without a meeting.
A meeting is one that is convened in accordance with the Act, with the required notice, and an agenda setting out any proposed decisions. How else can the other owners exercise their rights, including to serve notice of objection to a proposed decision?
I would ask both the manager and the Committee why they think they are exempt from those requirements when they purport to make decisions on behalf of the OC?