Is this a bug for the bugs or is this intentional

I was playing before work on the Bug front "new planet" and noticed something, all of the bugs besides the bigger one (Charger, Bile Titan, Bile Spitter, you guys get it) were so fucking fast, it felt like the Devs hit the "speed up" button multiple time's, I'm not sure if this is buly accident or if the want people to use the new armor from the Exo Warbond.

I played the Bugs a day before this patch and they were not this fast, the Bugs still swarmed me, they still killed me, and the did not need to get any faster, did anyone else notice this or am I just going crazy?