TRT is good in the right patient, but it's not without its risks. There's no such thing as a "safe" drug, even if it is replacing a natural hormone. As with every medication, the benefits and risks need to be weighed by the patient with physician guidance. Depending on risk factors(such as the mentioned cardiovascular disease), the risks may outweigh the benefits. Evidence-based Medicine is there to help guide our decisions, but by no means is it capable of giving us the correct answers for every individual patient. That's where clinical judgment comes into play. For every action or inaction you make in medicine, there are potential consequences.
The evidence does show increased risk of cerebro- and cardiovascular events in men receiving TRT, but that doesn't mean that nobody should ever get TRT. It's just more information for the clinician and patient to consider.