Not being close to the next halving can never be a perfect justification why anyone wouldn't believe that the bull season is about to kick off, we can experience a bull season at anytime whether we are close to the next halving or not, don't forget how unpredictable the market can be and perhaps no history are guaranteed of repeating itself, now it doesn't matter what we believe to be an indication or not, we can only be compel to concede the reality of the market, let's keep watching.
Look at the historical price movement of Bitcoin, you will see that it move in patterns, and history keeps on repeating itself, that's why investors always believes that the bull season comes after or before the halving. You are right when you said that nothing is impossible, and history may not repeat itself as expected due to the uncertainty of the market, but until then we can never be certain that the bull season has kicked off until it's confirmed.
History repeat itself and that has been the pattern so many traders have been using when they are trading.
They often check for market patterns and keep it has graph that can be use in the future to know what the market could be probably heading to. This has been the reason why we have so many market patterns in form of chart that are used to predict the future movement of cryptocurrency assets. The use of indicators can also help to predict the future price of Bitcoin or altcoins and it has been very effective as new indicators are being programmed to make trading easy to know what's happening in the market.