Nope. S.28 says right at the top: “A vote at a meeting by a person entitled to vote or by a proxy must be cast in person unless the owners corporation, by resolution passed at a general meeting, determines that a vote may be cast by some other specified means.
It goes on to say the regulations can allow for those “other specified means”. And you will find the details here in Section 14 of the Regs.
So the committee can’t do this on its own, but you could have a motion right at the start of your next general meeting to allow electronic voting, which will be entirely kosher if the majority attending the meeting in person or by proxy agrees.
You might then alert people to the opportunity to vote electronically or in advance in writing.