Whether it was serious or not, the hypocrisy still exists. As for tieflings, gith, and drow, it's still not a very big variety. Drow are literally just more elves. Gith are boring and not very popular and literally only there because they're close attached to mindflayers in the lore. And tiefling is a PhB race. It would be weirder to not have them.
Trying to use the excuse that more races are coming as well is also redundant. Of course more are. This is a board intended to give feedback and make suggestions. I have done that by saying,"Add more monster races." I also criticized their lack of racial options which is again. Feedback. If you dont want to see feedback or criticism, maybe dont read threads in a board literally called Suggestions and Feedback.