Ann: Voluntary Suspension, page-8

Trading halts are for a limited amount of time and cannot be extended. When the halt ends, if they need more time, they get suspended. Pretty much the same thing except that with the suspension, the existing orders get purged. Nothing to be concerned about here.

However, they did have 2 reasons for the halt so they could have asked for a 2+2 halt upfront. No idea why they didn't do that, although those halts are rare so maybe it was just an oversight.