Your math overshoots, p/e is 2 not 10. At 321/wk Blackjack's valuation is 321 x 52 x 2 x 5 x1000 = 167M, not 834M. That's about 20% of circulating supply, no game is above it.
But the threshold itself is right, and it's a good one. A single game's valuation crossing total WINR supply would be a broken state, and in practice the ceiling is lower since not all WINR sits in LP. We're taking that as a hard bound in the new game pricing model, max valuation as a % of circulating supply.
On the yield point, same answer as before. If you're optimizing yield per WINR, LP is the right product and originals aren't for you, they're trophy pricing plus burn. No mistake in the formula, it's rich on purpose.