Ann: Suspension from Official Quotation, page-376

They don't strictly abide to ASX rules here.



"If for any reason an entity is not in a position to make the announcement about the event it said would result in the lifting of the suspension within the time that it originally anticipated, the entity is expected to make an announcement to inform the market of the reasons for the delay, and the new date by which it expects the suspension to be able to be lifted."

I see nothing about the reasons for the delay in the last ann.

Why ASX accepted this ?

Most probably, the explanation of the delay would say much more about 4DS situation than they wanted to disclose at this time.
Imo, there are certainly other things comming after this annoncement - good or bad.