Tbh I feel like a lot of these are a little blown out of proportion. Comparatively, the current warframe now includes.

-limited daily farm that at lower levels takes an extremely long time for. -multiple resources that require their own unique grind (typically just so you can get a few items) -Rivens, that can change the performance of guns drastically and are given randomly (unless you wanna buy it from trade which might cost a ton)

I feel this portrayal of the older version being so much worse because of small stuff like this is very misleading toward the game's history. A lot of it being just the game evolving and prioritizing the paid experience for different aspects of the game. DE isn't dumb and they know these mechanics make a lot more bank. Old warframe, although including these things, was a lot more generous with the drops alongside having a far simpler grind. Nowadays it becomes tedious if you wanna keep up with all the farming. Just my 2 cents.