On the contrary, Roeper's leadership role at the Oath Keepers would have made such undercover investigations much more difficult.
Because the mainstream media didn't cover these events fully, right-wing extremist influencers were able to control much of the online narrative. https://www.yahoo.com/video/rioters-set-fire-federal-courthouse-162333860.html
Roeper hadn't attended the Million Maga March in DC on November 15, 2020 but other NC Oath Keepers did and based on what they saw there, the NC Oath Keepers decided to splinter off from the national OK group.
My aside: This splintering happened quite bit from 2014 on. The group was too big and unruly, and the leader/founder was a narcissistic blowhard who loved giving out orders from the comfort of his couch/bunker/computer screen while constantly hitting up OK member for donations.
That's some imaginative excuse right there 😂😂
There were many agent provocateurs throughout the summer of 2020. Umbrella man, the boogaloo boys shooting into the Minneapolis police station with an AK-47 and setting it on fire, setting police cars ablaze in Kansas, one of them also killed a fed & wounded another in California, an assistant police chief getting the crowds riled up...I can go on. Though, here's a short list which include others: https://www.counterpunch.org/2020/10/08/protests-provocateurs-infiltrators-are-disrupting-blm-protests/
According to his LinkedIn page, Roeper was with the FBI for 27 years, ending in August 2014, four months after the Oath Keepers aimed guns against federal agents at the Bundy Ranch standoff in Bunkerville, NV.