Rating change in April Long 2020

Since the number of participants have increased this month in Codechef Long Challenge 2020…In other long challenges if someone solved x number of questions he got say 400 rank but now he/she is getting 1000 rank. Does rating change after the contest is over take into the fact that the number of participants have also increased (300 out for 1000 people vs 1000 out of 10000 people)… in my opinion the rating change in the second case should be more.

Here: Rating Mechanism | CodeChef