The only conclusion you can draw from this is that there seems to be more than a 50% chance of your PNR confirming. If you are a single person with an adaptive schedule and lifestyle, then maybe you should take the chance. If you are travelling with family or for a critical appointment, then you would need to make your own judgement about taking the risk - you may decide against taking the risk.
As always, the final decision is yours. The element of chance is always there, and can turn either way at the last minute. Good luck.