Do you?
1 - Completely irrelevant to your argument.
2 - The Mythic drop rate from Glory Chests is stated to be 0.01% (1/10,000) and the maximum number of chests we can open at once is 200, which averages a 2% “drop rate” per batch of 200. The chance of getting two Mythic drops from any 200 Glory chests is therefore 0.04%, now divide this by the size of the available Mythic pool and you’re approaching rarities that are difficult to find even among thousands of players. So given this should be expected by default, how is it even relevant to your argument?
3 - That’s is a patently absurd example of … something that doesn’t even feel relevant to your argument to begin with? But to be fair, streaks are easily calculated by the desired drop rate exponentiated by streak length. And to make this easier let’s analyze a much easier drop table: weekly Summoning Stones. Each Troop has an apparently equal chance of dropping (proof), so if you craft even 10 of a given Summoning Stone, your chance of getting the same troop every time is 1/(8^10) or about 1 in a billion. Again, why are you providing such a patently absurd example and what makes you think it supports your claim?