I believe Barr's comments were constrained to the context of the FISA applications and renewals, as given to USA Durham.
Thus, a new chapter of investigation, such as the LTG Flynn unpredicated (also, after internal exonerations) targeting would be fair game as it shows Barry's conspired direction, through ordering Comey to "put the right people on" that.
If PDJT was "wiretapped" under the umbrella of the Barry-ordered LTG Flynn investigation, the related culpability (e.g., sharing SIGINT/HUMINT with political operatives, as we saw Farkas boasting about), Barry could indeed be charged with TREASON!
Uh,no.