This break even analysis would be more appropriate if the £15m had been ~burned, rather than invested in an asset which can be sold.
If I buy a house for £100k cash and it saves me £10k/year in rent (net costs), then after 10 years I’ve broken even in the sense of [cash out]=[cash in], but I also now have an asset worth £100k (+10y price change), so I’m doing much better than ‘even’.
I share your concerns about fandom culture / guru worship in EA, and am glad to see it raised as a troubling feature of the community. I don’t think these examples are convincing, though. They strike me as normal, nice things to say in the context of an AMA, and indicative of admiration and warmth, but not reverence.