When you believe it's the number of tokens that is a thing, then you are right. Then I think, why not 10ct tokens instead of 1$. But yea, can be any figure, also 1$.
However, I don't think the new tokens issued in your scenario will drive peeps to sell them. I think for the top holders, holding the majority of the tokens, the investment into SEED is a small part of their total crypto/investment, hence they hodl, as everyone would do when believing the project is good. Other factors for hodl-ing may play a role as well, like the top-level subscription to makerDAO. But you may be right when many more tokens in the market, with new investors, a bit more trading may be the result, though I really doubt it. I have the 'feeling' some of the existing investors will buy more SEED rendering the effort to no real net result 😂
Here is an idea: When Empo offers like 2 to 3x current value for SEED, I can imagine that will drive some peeps to sell 😜
More seriously: Giving more incentives for peeps to enter the liquidity pool may help as well.