Burrell is fine, but like many of the highly rated Illinois WR's to come out lately, I think he's a little bit overrated... Much like Cam Wiliams, Malik Elzy, Kam Brown, Tyler Morris, A.J. Henning, etc... I'm going to reserve judgement on Talyn Taylor until we see more of him, because I still think he could be excellent, but I don't think Burrell is in the same class of player as him at all.
ND doesn't need volume of WRs in this class, but they need to spend some serious money to land at least 2 guys that they feel are high impact players.
I think they should push hard for two of...
Easton Royal
Xavier Sabb
Julius Jones Jr
Khalil Taylor
Then supplement the class with a guy like Tyler Fryman or somebody else who emerges through spring / summer evaluations.
You're getting lost in rankings, many if which are old and leftover. Burrell is more likely to fall than he is to climb.