Academia is built on professionalism and goodwill. In academia people are expected to be experts of highest possible calibre, excellent in both teaching and research, capable of managing fundingboth funds and people, communicate complex ideas to various audienceaudiences, predict and mitigate risks, meet and exceed expectations of colleagues and stakeholders, achieve impossible and remain calm and smile all the time. This is a glamoured picture of academia, produced by the success-centred culture of modern society.
Reality, of course, is somewhat different: academics are people, too. We have strengths in some areas, but we need time to pick up the some other skills. Your PI was good in securesecuring external funding but not so good in managing meetings. You were good in helping other students but not so good in achieving the goals set for you. From what I see, you both under-performed in your roles.
I understand that you are frustrated and want to make sure there are consequences for your former PI for not standing up to your expectations. I assure you, not meeting the publication goals of the first grant is going to result in quite real consequences for your PI, i.e. it It will be very difficult for them to secure another grant, which is very likely towill result in failing to securenot having a tenure. Your PI's actions were possibly explained (but not justified) by this pressure.
Some years later, this brief encounter with your former PI will be only a small insignificant episode for you. I am not sure what you want to achieve for yourself by going after your former PI in the way you described. You want them to fail inhurt their career? — arguably, you already did quite well in it.
I would suggest to reflect on this episode and think about your future career. What could've you done better to reduce the unprofessional criticism and tunnel it into a more constructive way? How would you respond if a similar situation happenhappens in industry? What procedures does your future company have to help resolve such issues? What makes a better professional and how you can become one?
I wish you good luck in your future career.