Well ... hmm ... ( thinking while I'm writing here ) ... so every take has a problem in that it's a slice of the whole, but the whole is currently un-gettable ( could be someone's gotten it, would be cool if they stepped forward if they do ... but then again, maybe best to keep in the weeds, don't want to get one's head blown off ). So many are trying to find the seed of how to improve our conscious experience - make it more bearable, becoming happy, increasing capacity and capabilities. There is no seed, so really any effort, while stumbling on truths, will be inadequate. So on the one hand, I don't beat anyone up trying to figure things out. But on the other, following anything that's single/few dimensional will lead to failure and frustration. But it's worthwhile trying ( even if you knocked over the coffee table, broke the glasses, bumped your head, stubbed your toe to get to the other side of the room, at least you got there ). The "truth" could be one that's a composite of many/all takes on the matter and we may have to allow for customization ( what sunshine does to you, moonshine does to me ) and changing ( could be all of these efforts are trying to nail down a perpetually moving target ).
So we need and should keep trying and we'll keep fumbling along, bruising ourselves up on our path. So yes, I agree with the point of the article, but like Wilshire states, humans can walk and chew gum. There's value ( to keep it short ) in calming ones self down, but we should allow ourselves to rev up as well when the situation calls for it.
For example: I thanked god when my father died - not because I wanted him to or I was glad to see him depart - but because I was thankful for having the kind of father that would make me feel so intensely awful in his absence. I allowed it all in and let it all out - I let the emotion, the horror, the sadness wrack me - it was amazing, a gift that we can experience things so intensely, stress our frame, hard. And it helped me get to calm quicker. These internal self calming ( again, using calm for ease of conversation - there's a wealth of study in this space ) techniques are pretty good for day to day operation. But when the meteor hits our lives, employing such techniques could lead one to explode ( becomes denial, not enlightenment - like a pressure cooker ).
So yeah, emotion is immaturity and we can choose how to react to events - but at times we need the child in us to drive us into adventure and embrace/enjoy wonder.