There's been several reports that this would happen for quite a while now. Oddly high amount of people acting surprised about it on social media.
If anything this shows that they aren't confident enough to give him a big contract yet and they want him to put togethet a consistently good or great season
You don't give a qb that struggles to get above 200 yards and 1 TD most of his games a big ass contract.
You only give a huge contact quickly to QBs that you know are that dude. Burrow got his after 2.5 seasons of play essentially, Mahomes got his after only 2 seasons starting. Bryce is nowhere near their level.