But this poster is looking at the current facts and building a view. Rather than guessing
Anyone building a view on the current facts knows that deaths today reflect infections a month ago (in the same way that hospitalisations reflect infections about 2 weeks ago). this has been a consistent picture throughout the pandemic.
Someone looking at the current deaths and saying 'cases looked great a month ago and that is reflected in today's data' would be building a reasonable construction on today's facts.
Someone looking at today's deaths and saying 'that means there is no third wave going on in cases at the moment' is, obviously, misinterpreting today's data.
If deaths are still in the low single figures in 2-3 weeks' time, and there is no uptick in them from then on, despite the exponential growth of the Indian variant that will be reflected in the infections figures, that will be GREAT.
We cannot infer anything about the third wave - positive or negative - from today's deaths figures.