I treat basal keikis differently from the ones that form on flower spikes.
The ones that form on spikes quickly form smaller plants that are complete with roots. Often they can be removed and potted on their own within a year or less.
In comparison, the basal keikis function more like an extra set of leaves, or one plant with two crowns, for a few years. I have a phal in which the basal keiki and the original plant are nearly the same size, but the keiki has very few roots of its own. I expect that the keiki will remain attached to the main plant for a few years more until growth and age separate them naturally. The most impressive Phals I have ever seen were large multi-crowned plants, so I think you are wise to leave it on.
I would not be too worried about the wooden stake through the heart of your leaves. The holes are unsightly, but won't hurt the plant. Using the cinnamon is fine, but they would probably heal on their own as long as the leaves are kept dry & allowed to heal.
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