Still, does not make it racism. Plenty of cops make bad decisions, it doesn't make them all racist.
They were live on TV, so you can tell the cop's explanation was BS. When told they had to move, the reporter asked where was OK, at which point he was arrested. The crew was given no chance to comply with the orders.
Depends on your definition of racism. If you just mean "atomized, individual prejudice," you might be correct.
But this is textbook systemic racism, even if the cops aren't acting on a conscious bias. Even if their chief gave them clear orders explaining why, and the reasons ostensibly had nothing to do with race, it is still systemic racism because it falls into a pattern of systematic, nationwide discrimination which is irrefutable and that disproportionately affects people of color.
Recommend you read "So You Want to Talk about Race" by Ijeoma Oluo or "Me and White Supremacy" by Layla Saad to learn more about racism as actual experts on the subject understand it.
(Edit: typo)