I did not mark it down for the tail emission. I marked it down because almost 90% of the entire coinbase is mined in the first 4 years. That is not ideal as far as longterm distribution goes, and probably creates a lot of early adopter whales compared to a slower emission curve.
The tail emission does make concepts such as '90% of the entire coinbase' kind of meaningless.
While Monero distributes a 'larger portion' over the first few years compared to bitcoin, it distributes a 'smaller portion' over the first few decades (since Bitcoin's exponential reduction in coin distribution continues its relentless decline, but Monero's stops declining at about 8 years).
While it is clear what I'm getting at in the previous paragraph (especially if looking at a graph), I'm still a little skeptical about these comparisons as comparing a finite quality with an infinite quantity is not really valid. They're just very different approaches and strictly speaking incomparable. In the end we'll see whether either or both work out.