In principle i don't disagree that perspective is key and attitude has a big impact on how view our lives, how well we deal with changing circumstances or even set backs etc etc..
My problem with the context here is that he actually lacks realistic perspective. If your cloths are on fire its not realastic perspective to say "well at least im warm".... Its a harmful, potentially fatal situation, and needs to be addressed immediately! In this case he is talking, in part, about people who were invited to be part of a religious order, told to sacrifice most of their worldly possestions, quit their jobs, relocate to far away cities, and take a vow of poverty. The promise was, if you work hard, the religious order would provide food and shelter. There are also countless promises of 'oh the end of the world is anyday now' etc etc.. Now they are being told to leave the religious order through no bad act or deserving cause. The order simply decide they didnt need them anymore and absolutely no help is being given to assist in the transition! Its a cold heartless act by ANY measure but especially from a supposedly loving religion.
victimizing someone and telling them to get over it isnt perspective. Its abusive and more evidence its a cult.