Jean replied

Many thanks for your feedback Santi, indeed we all are very grateful for your comment which helps us to remember that leading an NGO and hosting volunteers is not an easy thing everyday. We also have to accept we can't satisfy everyone's expectations but fortunately a large majority of our volunteers are having amazing experiences with us and are happy to contribute to the important social impact the NGO is bringing to the 250 families we attend every year. Thanks to your criticism and behaviors with us during your short stay, we explored many ways to increase the satisfaction of volunteers, but we need to remain humble and accept that we can be limited with some people. In your comment you judged in a couple weeks the work of 6 years and it’s your right. Even if you did your best to demotivate the team during your stay, you are not the first to try it and won’t be the last; fortunately even if are not perfect we are in continuous improvement loop and plenty of people here are committed and grateful for years about it, and always happy to come and collaborate.
To conclude, I will be glad to listen to your experience the day you will have led your NGO for six years and wish you to be able to do a better job than us.